DD-CA-XXX-001
This is a single mode edge-emitting laser diode chip emitting at O-band CWDM wavelengths for uncooled applications up to 25 Gb/s. This distributed-feedback (DFB) laser is based on ridge-waveguide structure with multiple-quantum-well (MQW) design. This laser features high optical power output, high SMSR and wide working temperature range.
Modulation rate up to 25 Gbps
Operating temperature range -40 to 85°C
Complied with Telcordia GR-468
Key parameter
Parameter | Symbol | Min | Type | Max | Unit | Test conditions |
Threshold Current | Ith | 8 | 12 | mA | @T=25°C | |
| 20 | 25 | @T=85°C | ||||
Slope Efficiency | SE | 0.30 | 0.35 | W/A | Ith+20 @25°C | |
| 0.20 | 0.25 | Ith +20 @85°C | ||||
Optical output power | Pf | 5.0 | 7 | mW | Ith +20 @25°C | |
| 4 | 5 | Ith +20 @85°C | ||||
Forward Voltage | Vf | 1.12 | 2 | V | If= Ith +20 | |
Series Resistance | Rs | 8 | 12 | Ω | Ith +20 | |
| Bias Current | Iop | 80 | mA | CW | ||
Reverse leakage current | Ir | 0.01 | 0.1 | mA | @ -2V | |
Peak Wavelength | λp | λc -9 | λc* | λc +9 | nm | @ Pf = 5 mW,-40～85°C |
Wavelength/temperature coefficient | dλ/dT | 0.09 | 0.12 | nm/°C | -40～85°C | |
Side Mode Suppression Ratio | SMSR | 35 | 45 | dB | @ Pf = 5 mW,-40～85°C | |
Farfield（Vertical） | θ⊥ | 30 | 35 | 40 | degree | @ Ith +20 |
Farfield（Horizontal） | θ// | 20 | 25 | 30 | degree | @ Ith +20 |
3dB Bandwidth | 18 | 24 | GHz | @ Ith +30 |
Absolute Maximum Ratings
Parameter | Symbol | Units | Min | Max |
Storage Temperature | Ts | °C | -40 | 100 |
Operating Temperature | To | °C | -40 | 85 |
Forward power | PF | mW | 30 | |
Forward Current | IF | mA | 150 | |
Reverse Voltage | Vr | V | 2 | |
ESD level | ESD | V | 500 |
Recommended Bonding condition
Process | Recommended Conditions | |
Die attachment (Die Bonding) | Solder | AuSn |
Temperature | <350 | |
Dwell time | <10 sec | |
Pressure | 30 g | |
Ambient | N2 flow | |
Wire Bonding | Au Wire | |
Ball bond | ||
Diameter of wire | 25 µm | |
Weight | 30 g | |
Temperature | <200 | |
Dimensions and layout
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