- Cart
- |
- Personal Center
- |


1602nm 50mW PM DFB Narrow Linewidth Laser Diode
Distributed feedback (DFB) lasers from idealphotonics feature ultra-low relative intensity noise (RIN), ultra-narrow linewidth and high output optical power. They are widely used in automotive lidar, fiber optic sensing systems and high-precision measurement applications. We can provide customized services and corresponding technical support according to customer requirements.
Product features:Linewidth: 70 kHz-100 kHz;Optical Power: 180 mW;Relative Intensity Noise (RIN): -163 dB/Hz @ 100 kHz
Part Number:MP-DFB-1602-50-A81-14BF-PA-C1
Application area:Tunable Diode Laser Absorption Spectroscopy | H₂O (gas) monitoring
Add to Cart Request for Quotation Consult Favorite
Central Wavelength Output Power
1602nm 50mW

Detailed Parameters
Specification Table
Electrical / Optical Characteristics (Tsub = 25 °C, CW bias, unless otherwise specified)
Parameter | Symbol | Min. | Typ. | Max. | Unit | Condition |
Output Power | Po | 50 | 70 | — | mW | Continuous Wave (CW) |
Center Wavelength | λc | 1601.5 | 1602 | 1602.5 | nm | T = 25 ℃ |
Spectral Linewidth (FWHM) | ΔνL | — | 200 | 300 | kHz | Lorentzian linewidth |
Side Mode Suppression Ratio | SMSR | 40 | — | — | dB | CW, at output power Po |
Polarization Extinction Ratio | PER | 20 | — | — | dB | For PM devices, along slow axis |
Relative Intensity Noise | RIN | — | -163 | -155 | dB/Hz | — |
Optical Isolation | ISO | 40 | — | — | dB | — |
TEC Set Temperature | TTEC | 15 | — | 40 | ℃ | — |
Threshold Current | Ith | — | 15 | 30 | mA | At TEC set temperature TTEC |
LD Operating Current | Ib | — | — | 400 | mA | CW, at output power Po |
LD Forward Voltage | Vf | — | 1.5 | 1.8 | V | CW, at output power Po |
Photodetector Bias Voltage | VR | 4.75 | 5 | 5.25 | V | Cathode to anode |
Photodetector Current | Imc | — | — | 2 | mA | At output power Po |
Photodetector Dark Current | Imd | — | — | 1 | nA | At bias voltage VR = 5 V |
Operating Temperature | To | -40 | 25 | 80 | ℃ | — |
Storage Temperature | Ts | -40 | — | 80 | ℃ | — |
Spectrum Diagram

L-I Curve
Tuning Characteristic

Linewidth Test Result
Pin Definition:
Pin # | Definition | Pin # | Definition |
1 | Thermistor | 8 | Case Ground |
2 | Thermistor | 9 | Case Ground |
3 | LD(-) | 10 | NC |
4 | Detector (+) | 11 | LD(+) |
5 | Detector (-) | 12 | LD(-), RF |
6 | TEC (+) | 13 | LD(+) |
7 | TEC (-) | 14 | NC |
Ordering Information:
MP-DFB-□□□□-☆-A8▽-XX
**□□□□: Wavelength
1550: 1550nm
*****
1602: 1602nm
△ :Narrow linewidth
50: 50KHz
100: 100KHz
200: 200KHz
☆ : Output Power
50: 50mW
100: 100mW
180: 100mW
▽ : Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=SMF-28E+ FC/APC
SP=SMF-28E+ FC/PC
PP=PM Fiber+ FC/PC
PA=PM Fiber+ FC/APC
NL: Narrow Linewidth@200KHZ
--
Request for Quotation
We will reply to all your information about the product in time.
⇪