Equipment in the Laboratory | Tanabe Photonic Structure Group

Laboratory Research Equipment

Here are some photos of our research facilities.

: SAMCO VPE-4F isotropic etching system for silicon (used for etching silicon sacrificial layer. I had to purchase it to start my research)

: COHERENT C-70L CW CO2 laser with 70W output (used for laser refloating of toroidal resonators. First purchase at the time of the lab star...)

: Tapered fiber fabrication equipment (The first domestic prototype of fiber fusion coupler fabrication equipment was acquired at a low price.)

: Laser refloater (A system to focus CO2 laser using a 100 nm position-controllable xyz stage. It is used to perform laser reflow)

: Milli-Q Pure Water Production Equipment (This is a preliminary step to produce ultrapure water.)

: Milli-Q Elix ultrapure water generator (produces ultrapure water for cleaning wafers. The water has extremely high electrical resistance.)

: YAMATO Vinyl Chloride Draft Bench (for acid-alkali wet etching. We introduced this bench when we started up our laboratory)

: YAMATO detoxification equipment (Cleans the air from the draft bench. A large sirocco fan operates in the back of the ceiling)

: Metallurgical Microscope No. 1

: Metallurgical Microscope No. 2

: real microscope

: transmission microscope

: Small lathe equipment (used for polishing crystal resonators)

: Crystal growth apparatus (used to grow crystals by laser fusion pedestal method. 2014. under dismantling.)

: Gas cabinet (gas cylinders are stored in the cabinet for safety)

SANTEC TLD-710

tsl-710-480640-p-f-sp-00-0
Wavelength range : 1480-1640nm (160nm)
Wavelength setting accuracy: <±2pm
Wavelength resolution : 0.1 ppm
Light intensity : >+6dBm(1480-1640nm)
Spectrum line width : <100kHz

Santec TLD-510-A

TSL-510-A-500630-P-F-AP-00-1(≧+8dBm)
Variable wavelength range : 1500-1630nm (130nm)
Wavelength setting accuracy: ±100pm
Wavelength reproducibility: ±10pm
Setting resolution : 5pm( Fine Tuning time <1pm)
Optical output : ≧+8dBm(1500-1630nm)
STSSE ：≧35dB
SSSE ：≧45dB/nm

Santec TLD-510-A

tsl-510-d-500630-p-s-ap-00
Breakdown
Wavelength range : 1500-1630nm (130nm)
Wavelength setting accuracy : <±5pm
Wavelength reproducibility: <±2pm
Setting resolution : 1pm
Optical output : >-4dBm (1500-1630nm)
Spectrum line width : <1MHz

New Focus Velocity 6312

Wavelength 765-782 nm
Power 70 mW max @ 773 nm

Femtosecond Fiber Laser FFL (Pritel)

Pulse width: 600 fs
Pulse repetition rate: 20 MHz
Peak Power >100 W
Average output >1 mW
Wavelength tunable 1530 - 1560 nm
PM output w/ PER > 20 dB

QFLD-520-10S

Single Mode Fiber Coupled Laser Diode
QFLD-520-10S with FC/PC connector

He Ne Laser

Surlite Nd:YAG Q-switch laser

DIAMOND C-70L

70W CW carbon dioxide laser

Low noise, polarization-maintaining optical amplifier

LNHP-PMFA-20 (PriTel)

NF 20 dB

Polarization Maintaining Amplifier

LNHP-PMFA-18-L

Saturated output power >=30 dBm
Eb/Yb codoped fiber
Wavelength 1535-1565
Signal gain >= 31 dB @ 0 dBm input
NF =20 dB

LNHP-PMFA-18-L

Low Noise High Power Tandem Polarization Maintaining Optical Fiber
Amplifier with mid-stage access, L-Band, Model
LNHP-PMFA-18-L
18 dBm model
Wavelength range = 1565 - 1615 nm
Saturated output power = >18 dBm @ 1590 nm
Small signal gain = 0 to 38 dB, adjustable
Noise figure ≤ 4 dB @ 1590 @ Pin = -30 dBm
Independent control of pre-amplifier and power-amplifier
Mid-stage access

SONY DSC

: Santec TLD-510-A

: Santec TLD-710 / 510-C telecom wavelength narrow linewidth tunable laser (essential for Q-value measurement of resonators)

: C-band mode-locked femtosecond laser (1535~1565 nm wavelength tunable, 20 MHz repetition rate mode-locked light source)

: NewFocus Velocity 780-nm wavelength tunable laser (Narrow wavelength tunable laser in the wavelength band where water absorption is small. It is indispensable for bio-related experiments.)

: Pritel LNHP30 1 Watt Optical Amplifier (c-band EDFA capable of amplifying up to 30 dBm.)

: Pritel LNHP 23-L (L-band EDFA capable of amplifying up to 23 dBm)

: Pritel LNHP 20 dBm C-band low noise EDFA (used to amplify weak signals before measurement)

: EO Data Converter LN modulator + RF driver (12.5G EO modulator used to put optical signals on the laser beam.)

: NEL PLC MZI Mach-Zehnder Interferometer (used for wavelength calibration)

: Agilent 8163B Optical Power Meter (Optical power meter with logging function)

: Photonic crystal measurement system

: Lock-in amplifier No. 1 (used to measure weak optical signals)

: function generator

: DFB Laser

: Optical Spare Nuts (Borrowed)

: Pulse Check SHG autocorrelation measurement (excellent FROG measurement as well)

: Agilent Infinity high-speed digital sampling oscilloscope (observe time waveforms)

: Optical spares (old but still working)

: Lock-in amplifier No. 2

: Agilent PPG Pulse Pattern Generator (generates arbitrary electrical signals, up to 500 ps electrical pulses)

: Narrow bandwidth motorized bandpass filter (Used for wavelength separation of only the required signal light. Narrow linewidth filter)

: Tapered fiber alignment system (This is the main equipment in our laboratory. It is used to measure the Trojan micro optical resonator)

: Minus k high-performance vibration isolator (This is the platform on which the alignment device is mounted. It eliminates vibrations of several Hz.)

: Sigma tech stage (joystick to operate the alignment device. 10 nm feedback stage)

: RF Spectrometer (Measures electrical RF signals. It is used for measurement of optical comb fluctuation, etc.)

: Agilent 8163B Optical Power Meter (High sensitivity version #1)

: Agilent 8163B Optical Power Meter (High sensitivity version #2)

: NF Circuit Design Block Function Generator

: Piezo xyz stage controller (used to stage photonic crystal auscultation systems)

: Agilent DC Power Supplies

: Optical power meter (not used)

: Nd:YAG laser (not used)

: UV Light Source

: Coherent Mira femtosecond Ti:sapphire laser (dormant due to lack of pump source)

: Front room of optical measurement room

: HEPA filter No. 1 for optical measurement room

: HEPA filter No. 2 for optical measurement room

: Doors connecting all rooms to the corridor. A HEPA filter is installed in the gutter to suppress dust in the front room.

: The optical laboratory records humidity and temperature 24 hours a day.

: A desiccator in an optical laboratory. Samples are stored in the desiccator.

: Coffee machine in the student's room.

: Optical Spare Nuts (Borrowed)

: A microwave oven in a student's room. It is very useful for heating up lunch.

: Oxygen concentration system in clean room

: When the oxygen level drops, the patrol lamp in the corridor lights up.

: Clean room chemical storage

: Yellow desiccator in the clean room. The yellow color is to prevent exposure.

: I hope I never have to use it ........................ It is lifeless ....

: Hazardous chemicals such as hydrofluoric acid are used, and neutralizers such as calcium gluconate are always available in case of emergency.

A Year in the Lab in Pictures

Message from Professor Tanabe

Three Pillars for Leader Development

Prof. Tanabe's commitment

What is the deeper reason for using "san"?

Purpose of Tanabe Lab's Research

Using light to achieve ultimate power savings

Research Topics

Five main themes.

Video will get the word out!

Video introduction of research and laboratories

Internationality of Research

From Competition to Cooperation: Cultivating International Talent

Collaborative Research

Because we have the Only One technology.

Research Achievements

Laboratory Performance Revealed by the Numbers

Laboratory Facilities

There are also experimental devices that are not normally touched!

Tanabe Laboratory Albums

Scenes from a year spent in the laboratory

Questions & Answers

We're here to answer all your questions!

We are holding a lab information session for students who will be assigned in 2024. Open Labs are free to come and go as they please. Individual information sessions are also available at any time.

Individual Information Sessions and Lab Tours

Let's see the lab in action!

Individual information sessions and lab tours are held in person. Please visit the Yagami Campus and see the experimental equipments in our laboratory. You can send us an e-mail or fill out the form below.