Advanced Tunable Diode Laser

Future of Spectroscopy and Imaging System
We provide high-performance tunable diode lasers,

which open up new era of spectroscopy and imaging.

Spectra Quest Lab, Inc.
Spectra Quest Lab was founded in 2013,
Chiba-University Inohana Innovation Plaza,based on the heritage of JST Sentan Project“High Power and Widely Tunable Diode laser”.
Our products are based on “patented designof laser cavity” and “high-power gain chips”,
which were specially developed for tunable
diode laser by OPTOENERGY, Inc.
Inohana-Innovation-Plaza, Chiba, JAPANTransposed Littman Configuration

Pivot Point

Littman  d (sinConfiguration  sin  )Laser Diode

Laser Diode

Mirror



Lens

Lens

OutputGrating

ASE-Free
OutputGrating
Half Mirror

Pivot Point

0-20-40 Amplified Spontaneous Emission
-60
-80
960

980

10001020 1040 1060
Wavelength [nm]

1080

1100

Intensity [dBm]

Intensity [dBm]

0-20
ASE-Free Output

-40
-60
-80
960

980

1000

1020 1040 1060
Wavelength [nm]

1080

1100

High-Power & Wide-Band SOA Chip
Angled Narrow Taper Amplifier

Flared Taper Amplifier

W=~100mm

W=~10mm800

Output Power [mW]

700

FreeFree
Space
SpaceOutput
OutputI I= =2.02AA

600

PM Fiber
OutputPM-Fiber
CoupledOutput

500
400
300
200
1000990

1000

1010

1020

1030

1040

1050

Wavelength [nm][nm]
Wavelength

1060

1070

1080

1090

1100

1 mm Band, ASE-Free Tunable Diode Laser❏ High Spectral Purity： 80dB@ 0.01nm❏ High Output Power： 100 mW (Free Space)
50 mW ( PM Fiber )❏ Wide Band Tuning ： > 100 nm
980～1090nm, 920～1000nm❏ Mode-Hop-Free Tuning： > 50 nm❏ Narrow Linewidth : < 100 kHz (10ms)❏ High Res. Digital Control： 0.1 pm❏ High Speed Tuning ： 30 nm / s❏ Built-in Data Acquisition： 16bit- 2ch.

1 mm Band, ASE-Free Tunable Diode Laser
20

Spectral Intensity [dBm]

AQ6317: Res.=0.01nm❏ High Spectral Purity： 80dB@ 0.01nm

0❏ High Output Power： 100 mW (Free Space)
50 mW ( PM Fiber )-20-40

-60
-80

980

1000

1020

1040

1060

1080

Wavelength [nm]❏ Mode-Hop-Free Tuning： > 50 nm

160

Output Power [mW]140

λ-Master 1040

❏ Narrow Linewidth : < 100 kHz (10ms)

Air Space Output

120100❏ High Res. Digital Control： 0.1 pm

Fiber Output without D.C.

80

❏ High Speed Tuning ： 30 nm / s6040❏ Built-in Data Acquisition： 16bit- 2ch.

with Dispersion Compensation

200960❏ Wide Band Tuning ： > 100 nm
980～1090nm, 920～1000nm

980

10001020

1040

Wavelength [nm]

1060

1080

Wavelength Stabilized Diode Laser
Compact & low-cost tunable diode laser with PZT & Manual Tuning.
ASE-Free and Mode-Hop-Free Operation are realized at any wavelength.
❐ ASE-Free Output ：Free Space : 100 mW,
Fiber Output : 50 mW❐ Manual Tuning Range ：980 ～ 1080 nm,

920 ～ 990 nm❐ Mode Hop Free Tuning by PZT： 0.5 nm❐ Laser Linewidth：< 100 kHz (10 μs ）❐ Build-in Isolator and Fiber Port （Optional）❐ Frequency Lock by Invar Etalon（Optional）

Wavelength Stabilized Diode Laser
Compact & low-cost tunable diode laser with PZT & Manual Tuning.
ASE-Free and Mode-Hop-Free Operation are realized at any wavelength.
2010Air Output (dBm)

0-10

Res: 0.02 nm, AQ6370C - YOKOGAWAPZT Voltage
0V
75 V
150 V

❐ ASE-Free Output ：Free Space : 100 mW,
Fiber Output : 50 mW-20-30❐ Manual Tuning Range ：

-40
-50

980 ～ 1080 nm,

920 ～ 990 nm-60-701070.81071.21071.6

1072.01072.4❐ Mode Hop Free Tuning by PZT： 0.5 nm

Wavelength (nm)❐ Laser Linewidth：< 100 kHz (10 μs ）❐ Build-in Isolator and Fiber Port （Optional）❐ Frequency Lock by Invar Etalon（Optional）

1 W-100 nm High-Power & Wide-Band SOA
Combined with λ-Master Series❏ Wide Gain Band：980～1085nm,920～1010nm❏ High Power：1 W (Free Space)
600 mW ( Fiber Output)❏ Polarization Ratio： >100 / 1❏ Excellent Beam Quality： M2 ～ 1.1❏ Fiber Coupling：>50% over Gain Band
❏ APC Control： against Time & λ-Sweep❏ External Modulation： 0 ～ 20 kHz

1 W-100 nm High-Power & Wide-Band SOA
Output Power [mW]

800

Free Space Output

Combined with λ-Master Series

PM-Fiber Output

600❏ Wide Gain Band：980～1085nm,

without Auto Focus

400

920～1010nm

200

0
1000

1020

1040

1060

1080

1100

Wavelength [nm]30Output Spectra of λ Amp for 25C-2.5A seeded by λ Master I
2010um RA2

Intensity [a.u.]-10-201010nm1020nm1030nm
1040nm1050nm1060nm1070nm1080nm❏ Fiber Coupling：>50% over Gain Band❏ APC Control： against Time & λ-Sweep-30-40-50-60❏ Polarization Ratio： >100 / 1❏ Excellent Beam Quality： M2 ～ 1.1

100❏ High Power：1 W (Free Space)
600 mW ( Fiber Output)

1000

1020

1040

Wavelength [nm]

1060

1080

❏ External Modulation： 0 ～ 20 kHz

1 ns-Pulse Semiconductor Optical Amplifier
Combined with λ-Master or λ-Lock❏ 1ns Fourier Limit Pulse： SW: 250MHz
 50ps Pulse Sharper : Option❏ Pulse on demand：up to 250MHz

 Int./Ext. Trigger
 Build-in Delay Unit : 10ns with 10ps res.
❏ High Peak Power：Max. 1.5 W (Fiber Out) PM Fiber-In, PM Fiber Out❏ High Polarization Ratio： >30dB❏ Wide Gain Band：980～1085nm,920～1010nm❏ Very High Extinction Ratio： >70dB@1MHz

 Suitable for Fiber Amp Seeding1 ns-Pulse Semiconductor Optical Amplifier
Combined with λ-Master or λ-Lock❏ 1ns Fourier Limit Pulse： SW: 250MHz
 50ps Pulse Sharper : Option

0.25

1 nsec - 120 MHz❏ Pulse on demand：up to 250MHz

Voltage (V)

0.20
0.15

 Int./Ext. Trigger

0.10

 Build-in Delay Unit : 10ns with 10ps res.

0.05
0.00
04

81216

Output (dB)time (nsec)

20❏ High Peak Power：Max. 1.5 W (Fiber Out) PM Fiber-In, PM Fiber Out0

❏ High Polarization Ratio： >30dB-20❏ Wide Gain Band：980～1085nm,-40920～1010nm❏ Very High Extinction Ratio： >70dB@1MHz-60
100010201040

1060

Wavelength (nm)1080

 Suitable for Fiber Amp Seeding

Second Harmonic Conversion Unit
❏ Wide Tuning Range : 455 ～ 550nm
 24 Elements PPMgSLT Device
24 Elements PPMgSLT Device

 Automatic Selection of Device❏ Mode Hop Free Tuning Range : 4nm
 Synchronized Scan of T and λ User Friendly Computer Control

SHG Unit

When used with λ-Master and λ-Amp❏ SHG Power : ~ 5mW❏ High Spectral Purity： >80dB❏ Narrow Linewidth： <200kHz (10ms)❏ High Res. Digital Control： 0.1pm

Second Harmonic Conversion Unit
Phase Matching of Devices❏ Wide Tuning Range : 455 ～ 550nm

540 24 Periods PPMgSLT Device

530 Automatic Selection of Device

Wavelength (nm)

520
510

❏ Mode Hop Free Tuning Range : 4nm

500

 Synchronized Scan of T and λ490

 User Friendly Computer Control

480
470
460
30405060

708090100110120

When used with λ-Master and λ-Amp

Temperature (degC)❏ SHG Power : ~ 5mW

Absorption lines of iodine gas
1.0❏ High Spectral Purity： >80dB

Transmission

0.8❏ Narrow Linewidth： <200kHz (10ms)

0.6❏ High Res. Digital Control： 0.1pm

0.4
0.2
0.0

525.0

525.5

526.0

526.5

Wavelength (nm)

527.0

527.5

528.0

528.5

Tunable Coherent Terahertz Light SourceThis system utilizes UTC-PD (NTT-EL)
as a Terahertz mixer.
λ-Master 1040 and λ-Lock 1040 areused as mixing light sources.

❐ High-Power by UTC-PD•

Max. 1 μW❐ Wide Band Freq. Tuning•

0.3 ~ 4.5 THz❐ Rapid, High Res. Tuning•

Max 4 THz/sec Sweep•

Digital Res. : 3 MHz❐ High Spectral Purity•

Dynamic Range: > 50dB

❐ Narrow Linewidth•

100 kHz (10 μsec )❐ Zero Freq. Calibration❐ Freq. Calib. by Etalon

Tunable Coherent Terahertz Light Source
Frequency Dependence of Emitted Terahertz Power0-1❐ High-Power by UTC-PD

10-210•Max. 1 μW-310❐ Wide Band Freq. Tuning-410•-5100.3 ~ 4.5 THz❐ Rapid, High Res. Tuning

-6

100.0

1.0

2.0

3.0

4.0

Frequency (THz)
Expanded Chart of Water-Vapor Lines-2

10Detected Power (mW)

Detected Power (mW)

105.0•Max 4 THz/sec Sweep•

Digital Res. : 3 MHz❐ High Spectral Purity•

Dynamic Range: > 50dB

❐ Narrow Linewidth-310•-410100 kHz (10 μsec )❐ Zero Freq. Calibration-510❐ Freq. Calib. by Etalon-610

1.08 1.10 1.12 1.14 1.16

Frequency (THz)Tunable Pico-Second Pulse Synthesizer
Now we are developing tunable pico-second laser
by pulse carving technology, based on our semiconductor
based laser technologies.

CW 40mW

-Master 1040
980 ~ 1090nm

RF Oscillator
10GHz10mW

LN PhaseModulator

LN AmplitudeModulator

Pav =1W

-Amp 1040
980 ~1090nm

3ps -1GHz, ~100W peak

GVD Pulse
Compressor

Present statusThank you for your attention !
We are challenging toward the innovation of spectroscopy.
If you have any possible co-operative item with us,
please contact us through our website.
http://spectraquestlab.com
info@spectraquestlab.com