 
				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).
| Name | Model | Description | Parameter | Price | 
|---|
● Optical output: 20mW
● Narrow linewidth (Δν<1MHz)
● Wavelength: 780nm @ 25℃
● SM or PM Fiber (ø0.9mm)
● FC-APC connector
● 14-pin butterfly package
● Internal monitor PD and TEC
● Low power consumption
Optical Characteristics (at 25 °C laser temperature)
| Parameter | Symbol | Condition | Min. | Typical | Max. | Unit | 
| Center Wavelength | λc | TL=15~35℃ CW | 775 | 780 | 785 | nm | 
| Peak Optical Output Power | PO | - | 10 | 20 | mW | |
| Spectral linewidth | LW | - | - | 1 | 10 | MHz | 
| Side-mode Suppression Ratio | SMSR | CW | 30 | 40 | - | dB | 
| Optical Isolation | - | -10 < TC < +70 ºC | 30 | - | - | dB | 
| Polarization Extinction Ratio | ER | - | 20 | - | - | dB | 
| Relative Intensity Noise | RIN | CW, output power 5mW | - | - | -135 | dB | 
| Wavelength drift with case (-10 to 70 ºC) temperature | △λ | TL=15~35℃ | - | - | ±30 | pm | 
| Wavelength Temperature coefficient | Δλ/ΔT | TL=15~35℃ | - | 65 | 80 | pm/ºC | 
| Wavelength Current coefficient | Δλ/ΔΙ | - | - | 1.0 | 2 | pm/mA | 
Electrical Characteristics (at 25 °C laser temperature)
| Parameter | Symbol | Condition | Min. | Typical | Max. | Unit | 
| Threshold Current | ITH | - | - | 25 | 40 | 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 30 mW | - | 1.3 | 2.5 | 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 | 
| Thermistor temperature | - | - | - | - | 100 | °C | 
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

780nm Wavelength Stability Measurement

Linewidth Test Result



| 1 | Thermoelectric Cooler (+) | 8 | N/C | 
| 2 | Thermistor | 9 | N/C | 
| 3 | PD Monitor Anode (-) | 10 | Laser Anode (+) | 
| 4 | PD Monitor Cathode (+) | 11 | Laser Cathode (–) | 
| 5 | Thermistor | 12 | N/C | 
| 6 | N/C | 13 | Case Ground | 
| 7 | N/C | 14 | Thermoelectric Cooler (–) | 
Absolute Maximum Ratings
| Item | Unit | Min | Typ | Max | 
| Case Temperature | ℃ | -5 | 25 | 70 | 
| Chip Temperature | ℃ | +10 | 25 | 40 | 
| Operating Current | mA | 0 | 250 | 300 | 
| Forward Voltage | V | 0.8 | 1.2 | 1.8 | 
| TEC Current | A | - | 1.2 | 1.4 | 
| Reverse Voltage(LD) | V | - | - | 1.8 | 
● Laser interference experiment
● Drop-side of DWDM long-haul transport equipment
● Optical Test and Instrumentation
● Microwave Photonics
● CATV networks
● Sensors
PL-NL-□□□□-☆-A8▽-XX
□□□□:Wavelength
0633: 633nm
0780: 780nm
0790: 790nm
0795: 795nm
1050: 1050nm
1550: 1550nm
1555: 1555nm
*****
1560: 1560nm
☆ :Output Power
A:10mW
B:30mW
▽:Linewidth
1:<10MHz
XX: Fiber and Connector Type
SA=SM780+ FC/APC
SP=SM780+ FC/PC
PP=PM780+ FC/PC
PA=PM780+ FC/APC