1550nm 10mW DFB Butterfly Laser Diode
High-stability 1550nm DFB laser diode with TEC control and SM fiber output, designed for optical testing, communication systems, and OEM integration.
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Description
The 1550nm DFB Butterfly Laser Diode is a compact and stable optical source designed for fiber optic systems and precision measurement applications. Integrating a DFB laser chip with a butterfly package and single-mode fiber output, this module ensures reliable performance and consistent optical output.
With integrated TEC, thermistor, and monitor photodiode, the module provides accurate temperature control and long-term wavelength stability. Operating at the 1550 nm wavelength, it is optimized for low-loss transmission and high compatibility with fiber optic communication systems.
This module is ideal for optical testing instruments, sensing systems, and OEM integration where stable output and high reliability are required.
Key Features
• Stable 1550 nm DFB laser output
• Butterfly package for reliable integration
• Integrated TEC for precise temperature control
• Built-in monitor photodiode (MPD)
• High SMSR ≥45 dB
• Low threshold current (12–18 mA)
• SM fiber output for easy system connection
• Telcordia GR-468-CORE compliant
Applications
• Optical communication systems
• Optical test and measurement equipment
• Fiber optic sensing systems
• Laser source modules for OEM integration
• Laboratory and research applications
Optical/Electrical Parameters
| Parameter | Symbol | Test Conditions | Min. | Typ | Max. | Unit |
|---|---|---|---|---|---|---|
| Threshold Current | Ith | @25℃,CW | – | 12 | 18 | mA |
| Operation Current | Iop | – | – | – | 120 | mA |
| Optical Output Power | P | @25℃, IF=Iop | 10 | – | – | mW |
| Center Wavelength | λc | @25℃, IF=Iop | λ-3 | λ | λ+3 | nm |
| Side Mode Suppression Ratio | SMSR | @25℃, IF=Iop | 45 | – | – | dB |
| Isolation | ISO | @25℃, CW | 30 | – | – | dB |
| Monitor Operation Current | IMON | @25℃, CW | 50 | – | 4000 | μA |
| TEC Current | ITEC | – | – | – | 1.6 | A |
| Wavelength temperature coefficient | △λ/△T | – | – | 0.1 | 0.12 | nm/°C |
| Thermistor Resistance | RT | @25℃ | 9.5 | 10 | 10.5 | kΩ |
| Thermistor B-Value | β | 25℃/85℃ | – | 3950 | – | K |
| Fiber Length | – | – | – | 1 | – | m |
| Fiber Core/Cladding/Buffer | – | – | – | 9/125/90 | – | μm |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Storage Temperature | Tstg | -40 | 85 | ℃ |
| Relative Humidity | RH | 0 | 85 | % |
| LD Forward Current | ILF | – | 120 | mA |
| LD Reverse Voltage | VLR | – | 1.8 | V |
| PD Reverse Voltage | VR | – | 10 | V |
| TEC Current | Itec | – | 1.8 | A |
| TEC Voltage | Vtec | – | 4.0 | V |
| Lead Soldering Temperature and Time | Tsold/t | – | 260/10 | ℃ /s |
| Fiber bend radius | r | 30 | – | mm |
Product Size
Dimensions are in millimeters and (inches)
Pin Configuration
| Pin | Description | Pin | Description |
|---|---|---|---|
| 1 | Thermistor | 8 | Case Ground |
| 2 | Thermistor | 9 | Case Ground |
| 3 | Laser (-) | 10 | Null |
| 4 | MPD (+) | 11 | Laser (+) |
| 5 | MPD (-) | 12 | Laser (-) |
| 6 | TEC (+) | 13 | Laser (+) |
| 7 | TEC (-) | 14 | Null |
Ordering Information
| Family Name | Wavelength | – | Cooled | – | Fiber | Connector | Optical power | PIN Description |
|---|---|---|---|---|---|---|---|---|
| LTBF | 1310
1550 |
– | 0:without TEC
1:with TEC |
– | SM | 2：SC/APC
5：FC/APC |
10:10mW
20:20mW |
A: Type A |
Example:
| Family Name | Wavelength | – | Cooled | – | Fiber | Connector | Optical power | PIN Description |
|---|---|---|---|---|---|---|---|---|
| LTBF | 1550 | – | 1 | – | SM | 5 | 10 | A |
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