WDM Combo Double Laser BOSA

WDM Combo Double Laser BOSA
WDM Combo Double Laser BOSA
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The WDM combo BOSA double laser features a bidirectional transmission which is ideal for use in light source detection, OTDR systems, and other analog transmission systems. We use FP, DFP, and CWDM bidirectional lasers according to customer requirements. This laser features a low noise and high isolation with an output power range of 1 to 4mw.

Absolute Maximum Ratings
Parameter Symbol Min. Type. Max. Unit
Reverse voltage(LD) Vrl - - 2 V
Forward Current (LD) LfL - - 150 mA
Reverse voltage (monitor) Vrl - - 15 V
Reverse Current (monitor) Lrp - - 2 mA
Soldering Temperature(< 10sec.) Stemp - - 260
Storage Temperature Tstg -40 - 85
Operating Temperature Top -20 - 80
Electrical and optical characteristics
Parameter Symbol Min Typical Max Unit Notes
1310nm FP Laser
Output Power Po 1 2
mW CW,If=Ith+20mA
Slope Efficiency SE 0.05

mW/mA
Threshold Current Ith
10 15 mA CW
Operating Current If
30 40 mA CW
Operating Voltage Vf
1.2 1.5 V CW
Monitor Current Im 100
900 uA Vrd=5V, If=Ith+20mA
Monitor Dark Current Id
0.5 1 nA Vrd=5V
Cent Wavelength λc 1300 1310 1320 nm CW, If=Ith+20mA
Spectral Width Δλ

4 nm -3dB
Spectral Shift Δλ/ΔT

0.1 nm/℃ CW, If=Ith+20mA
Tracking Error TE -1.5
1.5 dB Im=const, TE=10log(P/2.0)
Return loss ER 40 45
dB CW
Isolation ISO 30 35
dB Single Stage
1490nm DFB Laser
Output Power Po 1 2
mW CW,If=Ith+20mA
Slope Efficiency SE 0.05

mW/mA
Threshold Current Ith
10 15 mA CW
Operating Current If
30 40 mA CW
Operating Voltage Vf
1.2 1.5 V CW
Monitor Current Im 100
900 uA Vrd=5V, If=Ith+20mA
Monitor Dark Current Id
0.5 1 nA Vrd=5V
Cent Wavelength λc 1480 1490 1550 nm CW, If=Ith+20mA
Spectral Width Δλ
0.2 1 nm -20dB
Side-Mode Suppression Ratio SMSR 35

dB Po=2mW,
Spectral Shift Δλ/ΔT

0.1 nm/℃ CW, If=Ith+20mA
Tracking Error TE -1.5
1.5 dB Im=const, TE=10log(P/2.0)
Return loss ER 40 45
dB CW
Isolation ISO 30 35
dB Single Stage
1550nm FP Laser
Output Power Po 1 2
mW CW,If=Ith+20mA
Slope Efficiency SE 0.05

mW/mA
Threshold Current Ith
10 15 mA CW
Operating Current If
30 40 mA CW
Operating Voltage Vf
1.2 1.5 V CW
Monitor Current Im 100
900 uA Vrd=5V, If=Ith+20mA
Monitor Dark Current Id
0.5 1 nA Vrd=5V
Cent Wavelength λc 1540 1550 1560 nm CW, If=Ith+20mA
Spectral Width Δλ

4 nm -3dB
Spectral Shift Δλ/ΔT

0.1 nm/℃ CW, If=Ith+20mA
Tracking Error TE -1.5
1.5 dB Im=const, TE=10log(P/2.0)
Return loss ER 40 45
dB CW
Isolation ISO 30 35
dB Single Stage
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