Hamamatsu LCOS-SLM X15213 Series User manual

ＬＣＯＳ-ＳＬＭ
X15213 Series
OPERATION MANUAL
・Please read this operation manual carefully before using this device.
・Failure to follow the instructions in this manual
may result in a serious accident.
・Keep this manual in a convenient location at all times.
Doc. No. LEJ-B60002
First edition Mar. 18, 2021

1
1. Introduction
Be sure to read it.
 Be sure to read "Safety Precautions" before use.
 Read this operation manual carefully before using the product.
 Keep this manual in a safe place and read it when necessary.
2. Before using the device
 When using this equipment, observe the equipment specifications and precautions. Our company
makes every effort to improve the quality and reliability of this product, but does not guarantee the
integrity of this product. Do not use the product in any way that could harm human life, body or property.
Our company is not responsible for such use.
 Unpack the device and check the contents. If the equipment is damaged or there is a shortage of
accessories, contact our company without operating the product.
 The information in this manual must not be reproduced or copied without the permission of our company
Corporation.
This product does not include PCs. Be prepared by the user.
Included Items
LCOS-SLM Controller 1
LCOS-SLM Head 1
Relay board 1
Relay board cover
Cover plate 2
Fixed foot 4
Fixing screw 4
Rubber Foot for Controller 1
Power cable 1
AC Adapter 1
DVI-D cable 1
LCOS-SLM Certificate of Inspection 1
DVD 1
(The DVD contains the instruction manual (this book), distortion correction patterns, and control software.)

2
3. Safety Precautions
Please be sure to follow the rules.
This device is a Class II device specified in the IEC 61010 -1 standard (Safety requirements for measurement,
control and laboratory electrical equipment) (Equipment with protective grounding terminal). In order to use
the device correctly and safely, observe the following safety precautions when operating the device. Our
company assumes no responsibility or warranty for any damage caused by using the FOMA terminal in
contravention of these precautions.
The following symbols are used in this manual.
DANGER
Indicates an imminently hazardous situation which if not avoided,
will result in death or serious injury. This signal word is to be limited
to the most extreme situations.
WARNING
Indicates a potentially hazardous situation which if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.

3
3.1 Warning
■Handling the Power Cable
Turn off the power before installing or removing cables, and then hold the connectors.
Do not operate the product with wet hands or mount or remove the cable. There is a risk of electric
shock or malfunction and it is very dangerous.
■Cables
Do not damage, or place heavy objects on cables. Doing so may damage cables, resulting in electric
shock or fire.
■ground grounding of the power supply
To prevent electric shock or malfunction, always plug the power cord into a socket with a grounding
terminal using a 3-wire cord. 3 When connecting to a 2-wire power supply using the -2 adapter, be sure
to ground the ground wire.
■Location
To prevent fire, install the device in a well-ventilated area free of dust, water, and fire.
■Removing the LCOS-SLM Controller Cover
Do not remove the LCOS-SLM controller cover. There is a risk of electric shock and it is very
dangerous. Do not disassemble or modify the product. Removing the cover is not covered by product
warranty.
■Be careful of reflected light
LCOS-SLM modulates the phase of light incident from a laser or other light source, reflects it, and
outputs it. Be careful where the reflected light of the LCOS-SLM goes. In some cases, it may affect
human body such as blindness. Take appropriate measures such as using a beam damper to block
light or wearing protective glasses to prevent light from entering the eyes.
■Watch out for the diffracted light
LCOS-SLM generates unwanted reflected light due to the effect of pixel diffraction. Pay particular
attention to the effects of diffracted light when a high-intensity laser is incident on the LCOS-SLM.
In some cases, it may affect human body such as blindness. Take appropriate measures such as
cutting diffracted light and wearing protective glasses corresponding to the wavelength used.
■If you notice anything unusual
Do not use the product in a condition where smoke, odor, abnormal sound, or heat is generated. Doing
so may cause fire or electric shock. If this happens, turn off the power switch immediately. Please
contact our company after confirming that there is no abnormality. Please do not repair by yourself as it
is dangerous.
■Do not apply vibration or impact
Excessive vibration or shock may damage components or cause misalignment, resulting in fire or
electric shock.
■Use only the supplied AC adapter/power cable
This device is designed to be connected through the AC adapter and power cable supplied with the
product. Otherwise, fire or electric shock may result. For details, see "Power Cable/AC Adapter" on
page 13.
■Do not let foreign objects or water get inside
Fire or electric shock may result if flammable materials, metals, or moisture enter the product.

4
3.2 Caution
Be sure to read the following precautions before using the product.
■This equipment is a precision optical instrument.
(a) Do not apply excessive vibration or impact.
(b) Do not store or operate in a dusty or wet environment, or at high temperature and humidity.
(c) Do not touch or scratch the opening of the LCOS-SLM. The LCOS-SLM may malfunction or change
its properties due to contact with the aperture or impact to the LCOS-SLM. Especially when
shipping, please make sure that there is no contact with the opening window.
(d) If by any chance you touch the opening window, wipe it lightly with an ethanol-containing gauze. In
addition, wipe with a dry cloth except for the opening window.
(e) There is a risk of damage or deterioration due to static electricity or surge voltage. Handle it with
extreme care.
■Connect the connector properly and securely.
Connect the connectors correctly and securely. If you are not connected properly, LCOS-SLM may not
work correctly. Failure to do so could damage the LCOS-SLM controller and the customer's system. For
precautions on connecting the relay board to the FPC cable (flexible printed circuit board), see page 14
"Connecting/Removing Equipment". The warranty does not cover malfunctions caused by improper
connection.
■Pay attention to the image output setting.
DVI control requires a DVI output (Personal computers (hereinafter referred to as PC), etc.). Set the
display properties as follows:
Type X15213 Series
Screen size
12
80

1
0
2
4
(
SXGA
)
Refresh Rate
60 Hz
C
olors
True Color
(
3
2
Bit
)
■About warm-up operation.
After the power is turned on, the power is turned on for approximately 20 seconds. During this time, the
LCOS-SLM does not run. The LCOS-SLM is also more stable after a 10 minute warm-up period.
■Pay attention to the polarization of the incident light.
Pay attention to the polarization direction of the incident light. For details, see "Polarization direction of
the incident light" on page 21.
■Pay attention to the amount of incident light.
The LCOS-SLM may be damaged if a very strong light is applied. If high-intensity or high-peak-power
lasers are used, contact our company for assistance. Note that damage caused by the addition of
incident light exceeding the light resistance intensity is not covered by the warranty.
■Note the wavelength of the incident light.
Note the wavelength of the incident light. If the wavelength is not set at the time of shipment, the
reflectance or light resistance may decrease or the desired operation may not be obtained.
■Do not block the ventilation vents on the LCOS-SLM controller.
Install the LCOS-SLM controller (controller) with an approximately 10 cm clearance around the air
cooling fan and ventilation holes. Closing the ventilation holes prevents the heat from diffusing inside
the controller, which may cause equipment failure or fire. Note that the warranty does not cover the
failure of the controller caused by closing the ventilation port.

5
Table of Contents
1. Introduction ............................................................................................................................................... 1
2. Before using the device ........................................................................................................................... 1
3. Safety Precautions ................................................................................................................................... 2
3.1 Warning .............................................................................................................................................. 3
3.2 Caution ............................................................................................................................................... 4
4. Overview .................................................................................................................................................... 6
5. Characteristics .......................................................................................................................................... 7
5.1 Absolute maximum ratings ................................................................................................................. 7
5.2 Operating Environment Conditions .................................................................................................... 7
5.3 LCOS-SLM Head ................................................................................................................................ 7
5.4 LCOS-SLM Controller ......................................................................................................................... 8
5.5 AC Adapter ......................................................................................................................................... 8
5.6 Optical specifications .......................................................................................................................... 8
5.7 Conformance standard ....................................................................................................................... 8
6. Internal configuration .............................................................................................................................. 9
7. Names and descriptions of parts .......................................................................................................... 10
7.1 LCOS-SLM Head .............................................................................................................................. 10
7.2 LCOS-SLM Controller ........................................................................................................................ 11
7.3 Relay board／Relay board cover ..................................................................................................... 12
7.4 Power Cable／AC Adapter ............................................................................................................... 13
7.5 DVD (contains distortion correction pattern and control software) ................................................... 13
8. Connecting／Removing Equipment ..................................................................................................... 14
8.1 Connection procedure ...................................................................................................................... 14
8.2 Connecting the relay board .............................................................................................................. 15
8.3 Relay board cover assembly ............................................................................................................ 17
8.4 Removal procedure .......................................................................................................................... 18
9. Setup ........................................................................................................................................................ 19
9.1 setup example of the optical system ................................................................................................ 19
9.2 Installing the Rod Stand ................................................................................................................... 20
9.3 Polarization direction of the incident light ......................................................................................... 21
9.4 How to set DVI video output (PC) .................................................................................................... 22
10. How to ................................................................................................................................................. 23
11. LCOS-SLM operation check .............................................................................................................. 24
12. Trouble shooting ................................................................................................................................ 26
13. Technical explanation ........................................................................................................................ 28
14. Warranty, repair .................................................................................................................................. 29
15. Dimensional outline ........................................................................................................................... 30
16. Water-cooled type (L, R Series) handling ........................................................................................ 32
17. External Dimensions (water-cooled type)........................................................................................ 37

6
4. Overview
LCOS-SLM is a liquid-crystal on silicon (LCOS) spatial light modulator that can modulate only the phase of
incident light. The phase of the incident light can be controlled arbitrarily by generating and displaying an
image using a DVI output device (PC, etc.).
LCOS-SLM has the following features:.
○ High precision phase modulation characteristics
○ High diffraction efficiency
○ High light utilization efficiency
Fig. 1 shows the concept of the phase modulation characteristics of the LCOS-SLM. The gradation value
of the image displayed on the PC becomes the value input to the LCOS-SLM, and the phase modulation
amount changes according to the input gradation value. The LCOS-SLM's non-linear response and phase
modulation characteristics, which vary from device to device, are corrected by adjusting parameters at the
time of shipment. As shown in Fig. 1, the phase modulation characteristics differ depending on the
wavelength used.
Fig.1 Phase Modulation Characteristics (Typical example)
Multilevel phase gratings can be displayed on LCOS-SLM to diffract light at any position. Please refer to
the Product Flyer for the efficiency of light diffracted (diffraction efficiency) at an arbitrary position when a
multilevel phase grating is displayed on the LCOS-SLM. Diffraction efficiency depends on the type of
LCOS-SLM.
0
1
2
3
4
5
6
0 32 64 96 128 160 192 224 256
入力階調値
位相変調量 π[rad]
700nm
633nm
532nm
405nm
Input signal level
Phase modulation [πrad.]

7
5. Characteristics
5.1 Absolute maximum ratings
Parameter Value Unit
Operating temperature + 10 to + 40 (no condensation) °C
Storage temperature -20 ~ + 55 (no condensation) °C
Note1) Be careful of humidity because humidity can cause characteristic deterioration.
Note2) Since LCOS-SLM is temperature dependent, it is recommended to use it at an ambient
temperature of about 25 °C.
5.2 Operating Environment Conditions
Parameter Value Unit
Place of use indoor use -
Operating altitude ≦2000 m
Degree of pollution 2 -
IP code IP 20 -
IK code IK08 -
Recommended Operating
Environment Temperature 25 °C
Operating humidity 30～70 (no condensation) %R.H.
Storage humidity 30～85 (no condensation) %R.H.
Warm-up time 10 minutes
5.3 LCOS-SLM Head
Parameter Value Unit
Number of pixels 1302528 (1272 x 1024) Pixels
Pixel pitch 12.5 µm
Maximum spatial frequency 40 lp/mm
Effective area 15.9 x 12.8 mm
Fill factor 96 %
Input signal levels 256 level
Weight 150 , 550 (L, R) g
Note1) “L” and “R” are designed with a water-cooled heat sink (water jacket).

8
5.4 LCOS-SLM Controller
Parameter Value Unit
Input power supply voltage +24 V
Allowable voltage fluctuation ± 5 %
Current consumption 0.6 A
Input signal Digital Video Interface (DVI-D)
USB-B (2.0 High speed) -
Weight 0.9 kg
5.5 AC Adapter
Parameter In/Out Value Unit
Power supply voltage Input 100 AC to 240 AC V
Frequency Input 50/60 Hz
Allowable voltage fluctuation Input ± 10 %
Power consumption Input 15 W
Overvoltage category Input II -
Output voltage Output +24 V
Output voltage fluctuation Output
± 5 %
Ripple Output 0.24 (MAX) V
Output current Output 2.71 (MAX) A
Over Voltage Protection Output + 36 (MAX) V
Plug shape Output
φ 5.5 - φ 2.1 - L 9.5 mm
Note1) Do not use anything other than the supplied AC adapter.
Note2) The power consumption indicates the value when connected to the LCOS-SLM controller.
5.6 Optical specifications
Check the data sheet for the applicable wavelength range of each type, light utilization efficiency, and
response speed.
5.7 Conformance standard
Safety IEC 61010 -1: 2010 + AMD1: 2016
EMC IEC 61326 -1: 2012
Emission limits CISPR 11 Group 1, Class B
Immunity requirements - Tables 1

9
6. Internal configuration
As shown in Fig. 2, the LCOS-SLM consists of a glass substrate, a transparent electrode, an alignment film,
a liquid crystal layer aligned in parallel, a dielectric multilayer mirror, and a silicon substrate. An active matrix
circuit is formed on the silicon substrate to apply voltage to the pixel electrode and the pixel electrode.
The number of pixels of the X15223 series is 1272×1024, and arbitrary control is possible for each pixel.
The display properties set on the PC are as shown in Fig. 3, and the input signals in the right eight columns
are ignored. Therefore, the signal of 1272×1024 pixels is displayed from the left.
Phase modulation is performed on the liquid crystal layer. The phase is modulated by the parallel aligned
liquid crystal layer, and the phase modulation amount changes according to the applied voltage. Although
liquid crystals generally respond non-linearly to input voltages, linear phase modulation is achieved with
respect to input values by incorporating a look-up table (LUT: Look-Up Table) within the drive circuit that
converts 8 bits of input into 12 bits.
Dielectric multilayer mirrors help to improve light utilization efficiency. The use of a dielectric multilayer
mirror makes it possible to achieve a light utilization efficiency of 90% or more in a specific wavelength range,
which is higher than that of LCOS-SLM composed of aluminum mirrors. The aluminum mirror type can be
used in a wider wavelength range than the type equipped with a dielectric multilayer mirror. However, the light
resistance is lower than that with a dielectric multilayer mirror, so be careful when using a high-power light
source.
Fig.2 Configuration of LCOS-SLM
Fig.3 Relationship between LCOS-SLM pixel structure and display properties
(Right 8 columns not used)
1272
1024
8
Glass substrate
Alignment films
Liquid crystal layer
Dielectric mirror
Silicon substrate
Transparent electrode