760nm High Power Single Mode DFB Laser (20mW, TO39 Package, Oxygen Detection)

760nm High Power Single Mode DFB Laser (20mW, TO39 Package, Oxygen Detection)

With optimized optical characteristics, the 760nm single-mode DFB laser is an ideal choice for high-demand sensor system applications. The innovative chip design suppresses higher-order longitudinal and transverse modes, while maintaining stable linear polarization. The laser offers high output power, narrow linewidth, and excellent consistency, making it highly favored by domestic research customers. Currently, we have stock of the 760nm DFB laser for TDLAS oxygen detection, the 795nm VCSEL for Rubidium atomic clock experiments, and the 852nm VCSEL for Cesium atomic cooling.

Product features：Ultra-high output power、 Narrow linewidth、 Internal TEC and thermistor、 2 nm adjustable TEC

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Application area：TDLAS oxygen analysis detection、 Optical coherence experiments

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Main parameters
General Parameters
Optional Configurations
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Main parameters

Core parameters

Dimension Drawing

General Parameters

Technical Parameters

Parameter	Symbol	Min.	Typ.	Max.	Unit	Remarks
Incident Wavelength	λ_R	760	760.5	761	nm	T = 20°C, I_TEC = 0, P_OP= 35mw
Threshold Current	I_TH		40		mA	T = 20°C
Output Power	P_opt	10	20	30	mW	T = 0 … 50°C
Threshold Voltage	U_TH		1.80		V
Laser Current	I_OP			130	mA	P_opt = 35mw
Laser Voltage	U_OP		2.0		V	P_opt = 35mw
Electro-optical Conversion Efficiency	η_WP		12		%	P_opt = 20mw
Slope Efficiency	η_S		0.74		W/A	T = 20°C
3dB Modulation Bandwidth	ν3dB		3		MHz	P_opt = 20 mW (due to ESD protection diode)
Relative Intensity Noise	RIN		-130	-120	dB/Hz	P_opt = 0.3 mW @ 1 GHz
Wavelength Tuning Current			0.01		nm/mA
Wavelength Tuning Temperature			0.1		nm/deg
Thermal Resistance	R_thermal	3		5	K/mW
Side Mode Suppression		30			dB
Beam Divergence	θ	10		25	°	P_opt = 35 mW full 1/e² bandwidth
Spectral Bandwidth	Δν		3		MHz	P_opt = 35mw
TEC Current	I_TEC			1000	mA	Requires proper heatsink
NTC Thermistor Resistance		9.5	10.0	10.5	kΩ	T= 25°C
NTC Temperature Dependence		10/exp[3892 · (1/298K-1/T_OP)]			kΩ

Absolute Maximum Values

Storage Temperature	-40 … 125°C
Operating Temperature	-20 … 80°C
Electrical Power Loss	500mW
Forward Laser Current	130mA
Reverse Current	10mA
Soldering Temperature	270C°