The PL-VCSEL-1-A81 763nm VCSEL is a vertical emitting MOVPE grown GaAsP/AlGaAs Single Mode diode laser. The chips are mounted in TO39 can. Wavelength tuning can be achieved via laser current and temperature tuning. package with TEC and PD Built in. It is special designed for TDLAS Application. Good Narrow linewidth and wide tunability with TEC made it a great low cost choice for Analyzer measures oxygen manufacture.
Condition:TO P = 20°C, IO P = 2.0 mA unless otherwise stated ( TO P = chip backside temperature, controlled by the TEC )
Parameters | Symbol | Min | Typ | Max | Unit | Remark |
Emission Wavelength | λR | Detail precision Wavelength Choose From Below Absorption Line |
Threshold current | ITH |
| 0.5 |
| mA |
|
Output Power | Popt | 0.2 | 0.3 | 0.65 | mW |
|
Threshold Voltage | UTH |
| 1.8 |
| V |
|
Driving Current | IOP |
|
| 2 | mA | Popt = 0.3 mW |
Laser voltage | UOP |
| 2 |
| V | Popt = 0.3 mW |
Electro optic conversion rate | ηWP |
| 12 |
| % | Popt = 0.3 mW |
Slope efficiency | ηS |
| 0.3 |
| W/A |
|
Differential series resistance | RS |
| 250 |
| Ω | Popt = 0.3 mW |
3dB bandwidth | ν3dB | 0.10 |
|
| GHz | Popt = 0.3 mW Due to ESD protection diode |
Relative intensity noise | RIN |
| -130 | -120 | dB/Hz | Popt = 0.3 mW @ 1 GHz |
Wavelength tuning over current |
|
| 0.6 |
| nm/mA |
|
Wavelength tuning over temperature |
|
| 0.06 |
| nm/K |
|
Thermal resistance (VCSEL chip) | Rthermal | 3 |
| 5 | K/mW |
|
Side mode supression |
| 25 |
|
| dB | I = 2 mA |
Beam divergence | θ | 10 |
| 25 | ° | Popt = 0.3 mW, full width 1/e2 |
Spectral Width |
|
| 100 |
| MHz | Popt = 0.3 mW |
Tec Characteristics | Unit | Min | Typ | Max | Remark |
Tec Current | mA | -150(Heating) |
| +300(Cooling) | Proper Heart Sink Required |
NTC Thermistor Resistance | KΩ | 9.5 | 10.0 | 10.5 | T=25℃@10 KΩ |
NTC Thermistor Resistance | KΩ | 10/exp{3892-(1/289K-I/TOP)} |
Spectrum
L-I Curve(T@25°C)
Wavelength tuning Range toward Temperature and Current
Oxygen Absorption line
Judging from Oxygen Absorption line we provide following high precision wavelength VCSEL Laser diode for your Choice:
High Precision Wavelength Selection Table |
Typ Emission Wavelength@Top=20 Iop=2mA | Final wavelength Tuned by TEC and Current |
760nm Absorption Line | min | max |
|
|
A Grade | 759.8 | 760.8 | 760.3 | 761.3 |
C Grade | 759.0 | 760.1 | 760.1 | 761.3 |
763nm Absorption Line |
A Grade | 762.5 | 763.5 | 763.0 | 764.0 |
C Grade | 761.9 | 764.9 | 763.0 | 764.8 |
763nm SM VCSEL Laser diode.pdf
