Narrow-linewidth Laser
Photonics

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Narrow linewidth DFB laser diode in a butterfly -type 14 pin package
with thermo-electric cooler and 55 dB isolator.

  1. 14p Butterfly
  2. Spectral linewidth < 100kHz
  3. 1550 nm - 1560 nm

FEATURES

  • Wavelength Range 1550 - 1560 nm
  • Spectral Linewidth 100kHz

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS(Tsub = 25deg.C)

Parameter Symbol Ratings Units
Laser diode reverse voltage V R 2.0 V
Laser diode forward current I F 350 mA
Operating case temperature T case -5 to 55 deg.
Storage temperature T stg -20 to 70 deg.
Photodiode reverse voltage V DR 10 V
Photodiode forward current I DF 10 mA
Peltier current I P 1.4 A

ELECTRICAL/OPTICAL CHARACTERISTICS(Tsub = 30deg.C)

Parameter Symbol Condition Min. Typ. Max. Units Data
Forward voltage V F I F = 30mA   1 1.5 V Deliver
Threshold current I (TH) CW   25 40 mA Deliver
Fiber output power Φe CW, I F = 300mA 8 12   mW Deliver
Peak wavelength λ p CW, I F = 300mA 1540 1550 1560 nm Deliver
Side mode suppression ratio SMS CW, I F = 300mA 35 40   dB Deliver
Spectral linewidth Δν CW, I F = 300mA     100 kHz Deliver
Monitoring current(PD) I R(E) CW,V DR = 5V,I F = 300mA 0.1     mA Deliver
Dark current(PD) I r(0) CW,V DR = 5V     100 nA Deliver
Tracking error E R I R(E) = constant -0.5   +0.5 dB Deliver
Cooling Capacity ΔTPE I F = 300mA,T case = 55deg. 30 35   deg. Option
Peltier Current I PE Tcase = -5 to 55deg.     1 A Option
Peltier Voltage VPE Tcase = -5 to 55deg.     2 V Option
Thermister Resistance R Tsub = 25deg.   10    
Isolation I s Tsub = 25deg.   55   dB  

ΔI F = I F - I (TH) , ΔT=| T case - T sub |

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