Photodigm DBR Laser Applications Note

PH808DBR Mercury™ Series High-Power Single-Frequency Laser Diode

808 nm Laser Diode in

Mercury™ TOSA Package 

Technology

  • DBR Single-Frequency Laser Chip
  • AlGaAs QW Active Layer

Features

  • Robust, monolithic die design
  • Pulsed operation for spectral stability at short pulse lengths
  • Package contains TEC cooling with precise thermistor control
  • High Slope Efficiency
  • Hermetic package for high reliability

Description

The 808nm Mercury™ series of high-power edge-emitting lasers are based on Photodigm’s advanced single-frequency laser technology. It provides a diffraction limited, single lateral and longitudinal mode beam in a compact hermetic package.  Facets are passivated for high-power reliability. Applications include mobile spectroscopy instrumentation where durability and reliability are essential.

 

 

 

 

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

-

**

Laser Reverse Voltage

VR

V

-

0.0

TEC Current

ITEC

A

-1.1

1.1

TEC Voltage

VTEC

V

-3.0

3.0

Thermistor Current

ITHRM

mA

-

1.0

Thermistor Voltage

VTHRM

V

-

10

**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

805

807

809

Optical Output Power

Po

mW

See Power Options Call-out

Slope Efficiency

ηd

W/A

0.6

0.75

-

Threshold Current

Ith

mA

-

50

80

Laser Series Resistance

RS

Ω

-

2.0

2.5

Laser Forward Voltage @ 150mA

VF

V

-

2.0

2.5

Thermistor Resistance @ 25°C

RT

-

10

-

Laser Line Width

∆v

MHz

-

1

10

Beam Divergence @ FWHM

θװ X θ

º

-

6 X 28

8 X 32

Side Mode Suppression Ratio

 

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.

How To Order

Part number example: PH808DBR080TS. Assign optical power from those available.  Use a three-digit format for all power entries. PH808DBR_ _ _TS  These devices are sensitive to ESD. 

                                            The Mercury™ Package

Minimum Power (mW)

        040     080  

        120     180

               

 

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