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Broad Area Diode Lasers, Multi Mode article

Broad Area Diode Lasers, Multi Mode

Multi Mode Diode Laser

Description:

Broad Area Diode Lasers are high power diode lasers with output power values in the order of 1W .. 10W. In comparison to conventional Fabry Perot Diode Lasers, the emitter width is enlarged from typically 3µm .. 7µm up to 50µm .. 200µm. Broad area diode lasers are spacially and longitudinally multimode mode.
Broad Area Diode Lasers, Multi Mode



Typical geometrical sizes of the Broad Area Diode Laser chip are 1000µm x 500µm x 200µm (length x width x height). The typical emitter width is 100µm. The laser chip is grown by MOVPE of compound semiconductor material. The optical gain is provided by double heterostructure which include several Quantum Wells for electronic confinement. The surfaces of the laser chip act as cavity mirrors due to the difference of the refractive index of the laser material and the surrounding air. The rear facet of the laser chip is provided with an high reflective coating. The front facet of the laser chip is provided with a class A anti-reflection coating  for directing the output power to the front facet of the laser chip. The broad area laser chips are mounted as chip on carrier.
High power devices are available with up to 0.5W at 740nm and 2W at 980nm. These diode lasers are longitudinal and spatial multimode.

 


 

Technical Details

Model #

Lambda / nm

P / mW

Width / µm

Ith / mA

Iop / mA

Uop / V

Div. q_|_

Div. q||

Pol.

Efficency W/A

Pin- Code

BA-0740-1.0

740
1000
100
550
1800
2.5
25
8
TM
0.9
BA

BA-0760-1.0

760
1000
100
500
1800
2.4
26
8
TM
0.8
BA

BA-0790-1.5

790
1500
100
500
2000
2.2
25
8
TM
1.1
BA

BA-0810-1.5

810
1500
100
500
2000
2.2
28
8
TM
1.1
BA

BA-0835-1.5

835
1500
100
450
2000
2.2
24
8
TE
1.0
BA

BA-0875-1.5

875
1500
100
450
2000
2.2
24
8
TE
1.0
BA

BA-0920-1.5

920
1500
100
400
2800
2.0
40
8
TE
0.9
BA

BA-0940-2.0

940
2000
100
400
2800
2.0
40
8
TE
0.9
BA

BA-0980-2.0

980
2000
100
500
2800
2.0
30
8
TE
0.9
BA

BA-1060-2.0

1060
2000
100
500
2800
2.0
39
8
TE
0.7
BA



Legend:

  Lambda
Wavelength / nm
  Uop Operation Voltage / V  
  P
Output Power / mW
  Div.q_|_ Beam Divergence / FWHM  
  Width
Emitter Width / µm
  Div. q|| Beam Divergence / FWHM  
  Ith
Threshold Current / mA
  Pol. Polarization  
  Iop
Operation Current / mA
  Pin Code Type of Laser Carrier  

 

 



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