Features
● Narrow Linewidth < 2MHz
● Excellent wavelength control and stability
● Industry Standard 14 pin Butterfly package
● Mode-Hop free tuning
● Excellant reliability
● Customer specific wavelengths available
Laser Specifications
Electrical/Optical Characteristics ( Tsub=25°C, CW bias unless stated otherwise )
Parameter | Symbol | Min | Typ | Max | Unit |
Centre Wavelength | λ | 851.0 | 852.0 | 853.0 | nm |
Side Mode Suppression Ratio | SMSR | 40 | 50 |
| dB |
Threshold Current | Ith |
| 20 | 30 | mA |
Operating Current | Iop |
| 300 | 350 | mA |
Operation Temperature | Top | 0 | 25 | 50 | ℃ |
Power in Fiber | Pf | 20 | 30 | 40 | mW |
Quantum Efficiency | η | 0.08 | 0.12 |
| mW/mA |
Current Tuning Coefficient | ∆λ/∆I |
| 0.015 |
| nm/mA |
Temperature Tuning Coefficient | ∆λ/∆T |
| 0.12 |
| nm/K |
Forward Voltage | Vf |
| 1.3 | 2 | V |
Isolation Degree | ISO |
| 30 |
| dB |
Thermistor Resistance | RT | 9.5 | 10 | 10.5 | KΩ |
Thermistor Temp. Coefficient |
|
| -4.4 |
| %/°C |
Connector | FC/APC |
Note: All the performance we can guarantee at operation temperature from 20-30deg.
Spectrum
Wavelength Stability
Tuning Characteristics
L-I Curve
DFB Linewidth Testing Result(Typical 130KHz)
RIN level Test Results
Panda PM980 Fiber Nominal Characteristics and Tolerances
Parameters | Specification |
Fiber Bend Radius | 3cm |
Max Attenuation | 2.1dB/km |
Cladding Diameter | 125um |
Coating Diameter | 250um |
Core Cladding Concentricity | ≤0.5um |
Mode Field diameter | 6.6um |
NA=0.12; FC/APC (narrow key)
The output light is polarized along the slow axis of PM fiber
Thermistor specs
Parameters | Value | Unit |
Thermistor Type | NTC |
|
Resitance@25deg | 10000 | ohm |
Resistance Tol.± | 1 | % |
Beta 0-50 deg | 3375 | K |
Package Size
Pin definition
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 (–) |
Note:
In the description for Above Table 1/10/11/14, the letters indicate the polarity of the electronic component, while the symbols in parentheses indicate the polarity of the external power supply.
The MPD operates under negative voltage; therefore, the MPD polarity is opposite to the external power supply polarity.
Absolute Maximum Ratings
Item | Unit | Min | Typ | Max |
Case Temperature | ℃ | -5 | 25 | 70 |
Chip Temperature | ℃ | 20 | 25 | 40 |
Operating Current | mA | 0 | 250 | 350 |
Forward Voltage | V | 0.8 | 1.2 | 2.0 |
TEC Current | A | - | - | 3.0 |
TEC Voltage | V |
|
| 4 |
Reverse Voltage（LD） | V | - | - | 2.0 |
Reverse Voltage(PD) | V | - | - | 20 |
Application
● Tunable diode laser absorption spectroscopy
● Cs Cold Atom
● Fiber laser
Ordering Info
PL-DFB-□□□□-☆-A8▽-XX
□□□□：Wavelength
852: 852nm
1532: 1532nm
1392: 1392nm
1512: 1512nm
1567: 1567nm
*****
1653.7: 1653.7nm
☆ : Output Power
A: 30mW
B: 40mW
▽: Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=HI780+ FC/APC
SP=HI780+ FC/PC
PA=PM980 Fiber+ FC/APC
PP=PM980 Fiber+ FC/PC
