DFB Butterfly Laser Diode
2MW-24MW 1310nm DFB butterfly laser diode produce laser beams with a stable wavelength. It can deliver high output power up to a maximum of 24MW. The module is composed of a built-in or external opto-isolator, 14-pin butterfly package with thermo-electric cooler, single mode fiber butterfly, 900μm tight tube, and FC/APC connector. The length of fiber butterfly is 1.00±0.10m. With a low threshold current, the device can be supplied with a built-in or external modem.
Applications
CATV forward-path
1310nm broadcast and point-to-point applications
| Parameter | Symbol | Condition | Min. | Max. | Unit |
| Operating Case Temperature | Tc | I=Iop | -20 | 80 | °C |
| Storage Temperature | Tstg | - | -40 | 85 | °C |
| Laser Forward Current | If | - | - | 150 | mA |
| Laser Reverse Bias | Vr | - | - | 2 | V |
| Photodiode Reverse Bias | Vrpd | - | - | 10 | V |
| TEC Current | Itec | -20 °C < Tc < +65 °C, Top=25 °C If=100 mA | -2 | +2 | A |
| TEC Voltage | Vc | | -2.5 | +2.5 | V |
| ESD | - | ESD-HBM:R=1500 ohm, C=100 pF | -500 | +500 | V |
| Lead Solder Temperature | - | - | - | 260 | °C |
| Lead Soldering Time | - | - | - | 10 | s |
| Fiber Bend Radius | - | - | 30 | - | mm |
| Fiber Yield Strength | - | - | - | 1 | kgf |
| Parameter | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Center Wavelength | λc | CW | 1300 | 1310 | 1320 | nm |
| Spectral Width (-3 dB) | Δλ | CW | - | 0.5 | 1 | nm |
| Optical Output Power | Po | CW, TL=25 °C | - | - | 32 | mW |
| Optical Isolation | IS | T=25 °C | 30 | 35 | - | dB |
| Side-mode Suppression Ratio | SMSR | CW | 35 | - | - | dB |
| Threshold Current | Ith | TL=25 °C | - | 10 | 15 | mA |
| Operating Current | Iop | CW | - | - | 100 | mA |
| Forward Voltage | VF | CW | - | 1.2 | 2.0 | V |
| Monitor Current | Imon | Vrpd=5 V | 100 | - | 1500 | μA |
| Monitor Dark Current | ID | Vrpd=5 V | - | - | 100 | nA |
| Operating Temperature | T | - | -20 | - | 60 | °C |
| Tracking Error | γ | TE=10log(Po(Tc)/Po(25°C) | -1 | - | 1 | dB |
| Thermistor Resistance | Rt | T=25 °C | 9.5 | - | 10.5 | KΩ |
| Thermistor B Constant | B | T=25 °C | | 3900 | | K |
| TEC Current | IC | ΔΤ=40°C | - | - | 1.0 | A |
| TEC Voltage | VC | ΔΤ=40°C | - | - | 2.0 | V |
| Frequency Range | F | - | 45 | - | 2500 | MHz |
| Cut-off Frequency | Fc(-3dB) | If=Iop | 4 | - | - | GHz |
| RIN | Nr | CW, If=Iop, f=2.5GHz | - | -155 | -150 | dB/Hz |
| Carrier Noise Ratio | CNR | Note 1 | 51 | - | - | dB |
| Composite Second Order | CSO | - | - | -57 | dBc | |
| Composite Triple Beat | CTB | - | - | -65 | dBc |
| Pin | Description | Pin | Description |
| 1 | Thermistor | 8 | Ground |
| 2 | Thermistor | 9 | Ground |
| 3 | LD (N) bias | 10 | Ground |
| 4 | Detector (P) | 11 | LD (P), ground |
| 5 | Detector (N) | 12 | LD (N), RF modulation |
| 6 | TEC (+) | 13 | LD (P), ground |
| 7 | TEC (-) | 14 | Ground |
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