Product Brief
Features
- ITU grid wavelengths at 100 GHz spacing
- Low RIN
- Laser welded, hermetically sealed
- Built in thermistor and monitor photodiode
Overview
The module is ideal in applications where low relative intensity noise (RIN) and stable polarization-maintaining properties are needed.
The module contains a thermo-electric cooler, thermistor, and monitor detector and is designed and built using EM4’s high reliability platform for defense applications.
Order Code Guidance
Performance Characteristics
Tpackage=20-25°C, continuous wave and beginning of life unless otherwise specified
| Optical characteristics | Sym | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output power | Pop | 120 | mW | |||
| Center frequency | Fopt | P=Pop ; Frequency accuracy 5THz | See order code | THz | ||
| Linewidth2 | Δν | Source dependent | 650 | KHz | ||
| Relative intensity noise2 | RIN | P=Pop, peak value | -160 | -165 | dBc/Hz | |
| Side mode suppression2 | SMSR | P=Pop | 30 | dB | ||
| Optical isolation2 | ISO | Fopt within C-band | 40 | 45 | 50 | dB |
| Polarization extinction ratio | PER | 17 | 21 | dB | ||
| Electrical characteristics | Sym | Condition | Min | Typ | Max | Unit | |
|---|---|---|---|---|---|---|---|
| Threshold current | ITH | 50 | 75 | mA | |||
| Laser drive current1 | Iop | 120 mW ex-facet | 600 | 700 | mA | ||
| Laser forward voltage | VF | I=Iop, Max no bias-T I=Iop, Max with bias-T | 1.8 1.9 | 3 3.0 | V V | ||
| Monitor photo diode current | IPD | P=POP | 100 | μA | |||
| Monitor photo diode dark current2 | ID | Vbias=-5 V | 100 | nA | |||
| TEC current2 | Tamb=25°C for typ Tamb=65°C for max2 P=Pop, TCHIP=25°C | 0.1 | 2.2 | A | |||
| TEC voltage2 | 0.1 | 6.0 | V | ||||
| Thermistor resistance2 | RTH | T = 25°C | 9500 | 10000 | 10500 | Ω | |
| Thermistor β coefficient2 | β | 0 / 50°C | 3892 | ||||
| Thermistor Steinhart-Hart coefficients2 | A = 1.1291e-3 B = 2.3413e-4 C = 8.7674e-8 |
Typical current tuning
Fiber Characteristics
| Fiber type | PM |
|---|---|
| Jacket material2 | Acrylate |
| Minimum bend radius | 35 mm |
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