1550nm Narrow Linewidth Laser Diode

Techwin’s 1550nm Narrow Linewidth Laser Diode is designed for ultra-narrow linewidth applications, utilizing Volume Bragg Grating (VBG) stabilization. This ensures high power, low noise, and a narrow linewidth, with a minimum linewidth achievable below 3kHz.

The laser is housed in a standard 14-PIN butterfly package and is available with single-mode or polarization-maintaining (PM) fiber, featuring an FC/APC connector output for good compatibility. This series of products is widely used in fiber optic sensing, laser radar, and other related fields.

Features

Ultra-Narrow Linewidth
Low Noise
Single Mode/Polarization Maintaining Fiber Output
Standard 14-PIN Butterfly Package

Applications

Fiber Optic Sensing
Laser Radar (LiDAR)
Optical Communication
Microwave Photonics

Parameters

Parameters	Min	Typ	Max	Unit
Output Power.	10			mW
Center Wavelength		1550		nm
Lorentz Linewidth			3/5/30	kHz
Side mode Suppression Ratio	50			dB
Polarization extinction ratio	20			dB
Relative intensity noise			-140	dB/Hz
Optical isolation	40			dB
Threshold current		40		mA
Operating Current			300	mA
Operating Voltage			1.8	V
TEC Temperature Setting	15		35	C
TEC Current			2.5	A
TEC Voltage			4.8	V
Thermistor Resistance @ 25℃		10		kΩ
PD Operating Voltage		-5		V
PD Current			2	mA
PD dark current			1	nA
Operating Temperature	0		50	℃
Storage Temperature	-40		85	℃