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Examples of Our Work


The following are examples of cases of our past work experience
in making customized laser optics devices, technical consulting,
and repair and modifications of customers' current lasers.

NOTES
We call an end user as a customer,
but there may be a trading company or another manufacturer between the end user and us.
To keep our customers' privacy, we do not mention the details.
In some projects, we were not in the leading position or we did not do all the work.


Customized Laser Optics

1. A multiwavelength laser source delivered by a polarization maintaining fiber.
Customer:
A Public Laboratory in Japan
Request:
Deliver a multiwavelength laser light by a polarization maintaining fiber.
The intensity of each wavelength should be controlled by an acousto-optic device.
Use the customer's lasers if possible.
Our Work:
First, we checked the customer's lasers to see if they functioned correctly.
Then, we designed optics with attenuators, a multiwavelength combiner, an acousto-optic module,
a fiber coupler and a polarization maintaining fiber.
Finally, we installed, tested, and confirmed the device functioned properly in the customer's laboratory.
Most of mechanical parts were selected from the suppliers' catalogues.

2. 213nm beam delivery and focus with gas purge.
Customer:
A Public Laboratory in Japan
Request:
Deliver and focus a 213nm beam (5th harmonic) from the customer's Nd:YAG laser
on a target placed in the customer's vacuum chamber.
Protect and gas purge the beam line.
Avoid any damages due to vacuum chamber bake.
Our Work:
First, we designed the optics and mechanics for beam delivery, focus and gas purge.
The beam focus was designed to be detachable from the vacuum chamber without serious misalignment.
Then, we installed, tested, and confirmed the device functioned properly in the customer's laboratory.
Some of the mechanical parts were selected from the suppliers' catalogues,
while the other parts were designed by us and machined in our partner factories for this project.

3. Collimation and delivery of a fiber output laser light to a beam diagnostic device.
Customer:
A Private Company in Japan
Request:
Diagnose a laser beam for processing in a factory with safety and accuracy.
Collimate the fiber output laser light.
Adapt the mechanics to each fiber connector type.
The beam diagnostic device was already selected by the customer.
Our Work:
First, we designed and assembled optics and mechanics for the diagnostic device and optical fibers.
Then, we tested, and confirmed the device functioned properly in the customer's factory.
Most of mechanical parts were designed by us and machined in our partner factories for this project.


Technical Consulting for Lasers

1. Design and alignment of beam delivery and focus system for a high power ns YAG laser.
Customer:
A Public Laboratory in Japan
Request:
Design, assemble and align optics for the application.
Our Service:
First, we set specifications of the optics for the application.
Then, we designed the optics and selected components.
Finally, we visited the customer's laboratory to explain how to align the optics.

2. Design and alignment of confocal optics.
Customer:
A Public Laboratory in Japan
Request:
Design and assemble confocal optics for the application.
A standard microscope was already selected by the customer as a component to use.
Our Service:
First, we checked the customer's microscope.
Then, we designed the optics and showed the customer how to make the alignment.

3. Design and alignment of optics for laser illuminated fluorescence photon counting.
Customer:
A Public Laboratory in Japan
Request:
Improve the S/N ratio of the optics for laser illuminated fluorescence photon counting.
Our Service:
First, we listed every element which degrades the S/N ratio and proposed solutions.
Then, we explained why some other solutions would not help.
Finally, we explained how to align the optics.

4. Confirmation that the customer's laser product is a class 1 device.
Customer:
A Private Company in Japan
Request:
Confirm that the customer's laser product is a class 1 device.
Our Service
First, we recommended a secure system design.
Then, we calculated the Class 1 AEL (accessible emission limit) by specifications of an integrated class 4 laser
according to JIS (Japanese Industrial Standards) C6802.
Finally, we designed and assembled the optics to measure leaked emissions from the product,
then made a measurement and confirmed it as a class 1 device.


Laser Repair or Modifications

1. Modification of a laser scanning confocal microscope.
Customer:
A Public Laboratory in Japan
Request:
Optimize a laser scanning confocal microscope for a specific application.
Our Operation:
First, we calculated an optimum beam diameter for the application.
Then, we modified an Olympus FV300 laser input port and changed the input beam diameter.

2. Modification of a lamp pumped Nd:YAG laser.
Customer:
A Private Company in Japan
Request:
Add external optics to get variable output power.
Reduce the water cooling circuit size.
Our Operation:
We designed and assembled a variable attenuator and installed it in the laser.
At the same time, we designed, and our partner factory machined, small branch parts
to reduce the water cooling circuit size.

3. Repair and modification of a heterodyne interferometer.
Customer:
A University in Japan
Problem:
The output signal level was reduced.
Our Diagnosis:
The coherence of the He-Ne laser inside the interferometer was degraded.
The distance difference of the two beam passes was too long compared to the He-Ne laser coherence length.
Our Operation:
We replaced the He-Ne laser and added a delay line to the reference beam,
then tested and confirmed the interferometer functioned correctly.

4. Refurbishment of a laser scanning confocal microscope.
Customer:
A Public Laboratory in Japan
Problem:
Some parts were missing and the optics were misaligned.
Our Operation:
First, we designed, and our partner factories machined, the missing parts of the Olympus GB200.
Then, we aligned, tested, and confirmed the GB200 functioned correctly.

5. Refurbishment of an optical pumping chamber for a lamp pumped Nd:YAG laser.
Customer:
A University in Japan
Problem:
The laser output pulse energy had decreased.
Our Diagnosis:
Water penetrated through an aged sealant into the light diffusing material
so the light pumping efficiency dropped.
Our Operation:
First, we disassembled the pumping chamber, dried the diffusing material, then sealed it again.
Next, we put the pumping chamber back into it's original position in the laser.
Finally, we aligned the laser and checked and confirmed the output energy.

6. Repair of a laser rangefinder.
Customer:
A Private Company in Japan
Problem:
The Laser rangefinder did not function.
Our Diagnosis:
An aged tantalum capacitor had burned, thus damaging other components.
Our Operation:
First, we replaced the damaged components with new ones.
Then, we tested and confirmed the rangefinder functioned correctly.

7. Alignment of an argon ion laser.
Customer:
A Public Laboratory in Japan
Problem:
No laser emission.
Our Diagnosis:
We found that the gas had ionized. The laser oscillator could have been misaligned.
The front mirror was not misaligned seriously.
Our Operations:
First, we designed, and our partner factory machined, a special tool for the laser.
Then, we aligned the end mirror using the tool.
Finally, we checked and confirmed the laser output power.



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