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Photodigm Incについて

Photodigm Inc は自社工場での設計・製造を通して、多種・高品質の商品供給を維持しています。

2000年以降はDBR技術に特化し、こちらの分野でも専門性を高めています。

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785 nm laser diode (PDF)

Technology

  • DBR Single-Frequency Laser Chip
  • AlGaAs QW Active Layer
  • Epi designed for high reliability

Features

  • Applications for the 785 nm laser diode include Raman spectroscopy and optical storage.
  • Available in several package styles
  • Pulsed operation for spectral stability at short pulse lengths
  • High power for CW applications
  • High Slope Efficiency

 

ラマンレーザー

 

Absolute Maximum Rating

Parameter

Symbol

Unit

Min

Max

Storage Temperature

TSTG

°C

0

80

Operating  Temperature

TOP

°C

5.0

70

CW Laser Forward Current, T=25°C

IF

mA

150**

Pulsed Laser Forward Current, T=25°C,

IF

A

0.3

PW=300 ns, DC=10%

Laser Reverse Voltage

VR

V

0.0

Photodiode Forward Current 1/

IP

mA

5.0

Photodiode Reverse Voltage  1/

VR

V

20.0

Photodiode Dark Current, VR=10V, LD IF=0, 1/

ID

nA

50

TEC Current 1/

ITEC

A

-2.0

2.0

TEC Voltage 1/

VTEC

V

-6.0

6.0

Thermistor Current 1/

ITHRM

mA

1.0

Thermistor Voltage 1/

VTHRM

V

10

External Back Reflection

dB

-14

Lead Soldering Temperature, 10 sec. Max.

°C

260

1/ Butterfly package 2/ TO8 package **Do not exceed drive current or operating power of supplied LIV.

CW Characteristics at TC = 25°C unless otherwise specified.

Parameter

Symbol

Unit

Min

Typ

Max

Center Wavelength @ 150mA

λc

nm

783

785

787

Optical Output Power @ 150mA

Po

mW

See Power Options Call-out

Slope Efficiency, 1/

ηd

W/A

0.3

0.36

Slope Efficiency

ηd

W/A

0.6

0.75

Threshold Current

Ith

mA

50

70

Laser Series Resistance

RS

Ω

2.0

2.5

Laser Forward Voltage @ 150mA

VF

V

2.0

2.5

Thermistor Resistance @ 25°C, 2/

RT

10

Photodiode Dark Current, VR=10V, LD IF=0, 2/

ID

nA

50

Laser Line Width @ 150mA

∆v

MHz

3

10

Polarization Extinction Ratio, 1/

PER

dB

-16

-19

Beam Divergence @ FWHM

θװ X θ

º

6 X 32

8 X 34

Side Mode Suppression Ratio

SMSR

dB

-30

Laser Polarization

TE

Mode Structure

Fundamental Mode

1/ Butterfly package  2/ TO-8 package

Handling Precautions

These devices are sensitive to ESD. When handling the module, grounded work area and wrist strap must be used. Always store in an antistatic container with all leads shorted together.

Package Type

CS/ CM / T8/ BF

Minimum Power (mW)

40; 80; 120; 180

 

 

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