The PL-NL series Fiber Bragg Grating laser is single frequency laser diode module designed for optical measurement and communication. The laser is packaged in 14-pin standard butterfly package with monitor photodiode and thermo-electric cooler (TEC).The Single-Frequency Continuous Tuning Range: > 1.2 nm by adjust the Mini PZT Built in the laser diode.
Optical Characteristics (at 25 °C laser temperature)
Parameter | Symbol | Condition | Min. | Typical | Max. | Unit |
Center Wavelength | λc | TL=15～35℃ CW | 1556.5 | 1557.0 | 1558.5 | nm |
Peak Optical Output Power | PO | - | 10 | - | 30 | mW |
Spectral linewidth | LW | - | - | 1 | 1 | MHz |
Side-mode Suppression Ratio | SMSR | CW | 30 | 40 | - | dB |
Optical solation | - | -10 < TC < +70 ºC | 30 | - | - | dB |
Polarization Extinction Ratio | ER | - | 20 | - | - | dB |
Relative Intensity Noise | RIN | CW, output power 5mW | - | - | -150 | dB/HZ |
Wavelength drift with case (-10 to 70 ºC) temperature | △λ | TL=15～35℃ | - | - | ±30 | pm |
Wavelength Temperature coefficient | Δλ/ΔT | TL=15～35℃ | - | 15 | 30 | pm/ºC |
Wavelength Current coefficient | Δλ/ΔΙ | - | - | 1.5 | 2 | pm/mA |
Mode Hop Free Range | ΔI |
|
| 30 |
| mA |
Single-Frequency Continuous Tuning Range | Δf |
|
| 3 |
| GHz |
Electrical Characteristics (at 25 °C laser temperature)
Parameter | Symbol | Condition | Min. | Typical | Max. | Unit |
Threshold Current | ITH | - | - | 45 | 65 | mA |
Slope Efficiency | ƞ | CW output power 30 mW | 0.064 | 0.1 | - | mW/mA |
Operating current | Iop | CW | - | 250 | 300 | mA |
TEC set temperature | Ts | - | 15 | - | 35 | ℃ |
Laser Forward Voltage | VF | CW output power 5 mW | - | 1.3 | 1.8 | V |
Monitor Dark Current | ID | - | - | - | 0.1 | μA |
Input Impedance | ZIN | - | 22 | 25 | 28 | Ω |
Thermistor Current | ITC | - | 10 | - | 100 | μA |
Thermistor Resistance | RTH | TL = 25 °C | 9.5 | 10 | 10.5 | KΩ |
TEC Current | ITEC | TL = 25 °C, TC = 70 °C | - | - | 1.8 | A |
TEC Voltage | VTEC | TL = 25 °C, TC = 70 °C | - | - | 3.5 | V |
TEC capacity | ΔT | Tc = 70℃ | - | - | 50 | °C |
Tuning Range | Δf |
| 1 |
| 1.5 | nm |
PZT Tuning Voltage | VT |
| 0 |
| 150 | V |
Mode Hop Free Range | ΔI |
|
| 3 |
| mA |
Fiber Pigtail Specifications
Parameters | Description |
Fiber Type | PM fiber |
Jacket Type | 900μm loose tube |
Pigtail Length | 1.0±0.1m |
Connector Type | FC/APC |
PM fiber Connector Orientation | Please see the right figure |
Note: The PM fiber and the connector key are aligned to the slow axis,fast axis is blocked.
Spectrum
L-I Curve
Linewidth Testing Result
Wavelength VS PZT Voltage
Wavelength Stability Test Result
1557nm Narrow Linewidth Laser Module PZT Sweep Freouency Test
1557nm SM FBG stabilized Tunable laser diode .pdf
