1653-TMT
Dingxin Optoelectronics has independently developed a methane-detection laser chip with automatic temperature control. A monolithically integrated heater and thermistor resolve the temperature difference between the NTC and chip, improving heating efficiency, reducing power consumption by about 40% and lowering methane-detector packaging costs.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Threshold Current Ith [CW；Tc=60℃] | max:25 mA |
| Optical Output Power 1 [CW,Iop=50mA；Tc=60℃] | min:5 mW |
| Slope Efficiency SE [CW；Tc=60℃] | min:0.1 mW/mA; typical:0.2 mW/mA |
| Operating Voltage Vop [CW, Iop=50mA；Tc=60℃] | max:1.7 V |
| Heater Resistance Rh [Tc=25℃] | min:13 Ω; typical:18 Ω; max:23 Ω |
| Thermistor Resistance Rt [Tc=25℃] | min:20 kΩ; typical:21.5 kΩ; max:23 kΩ |
| B constant of Thermistor [25℃ to 65℃] | min:618 K; typical:638 K; max:658 K |
| Center Wavelength λ [CW, Iop=50mA；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1653 nm; typical:1653.7 nm; max:1655.1 nm |
| Wavelength Temperature Coefficient Δλ/ΔT [Tc=60℃] | typical:0.1 nm/°C |
| Wavelength Current Coefficient Δλ/ΔI [Tc=60℃] | typical:0.02 nm/mA |
| Side-mode Suppression Ratio SMSR [CW, Iop=50mA；Tc=60℃] | min:35 dB; typical:45 dB |
| Far-field Angle (FWHM) θ// [Tc=60℃] | typical:30 Deg |
| Far-field Angle (FWHM) θ⊥ [Tc=60℃] | typical:40 Deg |
| Center Wavelength λ [Bin 1；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1653.2 nm; max:1653.7 nm |
| Center Wavelength λ [Bin 2；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1653.7 nm; max:1653.9 nm |
| Center Wavelength λ [Bin 3；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1653.9 nm; max:1654.1 nm |
| Center Wavelength λ [Bin 4；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1654.1 nm; max:1654.6 nm |
| Center Wavelength λ [Bin 5；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1654.6 nm; max:1655.1 nm |
| Center Wavelength λ [Bin 6；Tc=60℃；Wavelengths are categorized into predefined bins.] | min:1653 nm; max:1653.2 nm |
Applications
Key Features
Datasheet
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