China wholesale High Power Laser Diode Bar Modules - 940nm 70W Fiber coupled diode laser for pump application – BWT

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China wholesale High Power Laser Diode Bar Modules - 940nm 70W Fiber coupled diode laser for pump application – BWT Detail:

Product Features

BWT, founded in 2003, providing diode laser, fiber laser, ultra-fast laser products and solutions to global customers. We pursue continuous innovation and adhere to independent and controllable advanced processes and technologies. With Beijing headquarters as the core, BWT has successively established production and R&D centers in Jiangsu, Shanghai and Shenzhen, and invested in the construction of intelligent and digital production bases in Tianjin.

In 2020, BWT established a German subsidiary and introduced European quality standards to further build the world’s highest level of technical strength and product quality, taking a solid step towards the internationalization of R&D, production and technological innovation.

Main Features

Wavelength：940nm
Output power: 70W
Fiber core diameter: 105μm
Optical ﬁber numerical aperture：0.22 NA
Feedback protection：1400nm-1600nm
Applications:
Fiber laser pump source

Instructions for use

- Avoid eye and skin exposure to direct radiation during operation.
-ESD precautions must be taken during storage, transportation and operation.
-Short-circuit is required between pins during storage and transportation.
-Please connect pins to wires by solder instead of using socket when operation current is higher than 6A.

Specifications (25°C)		Symbol	Unit	Minimum	Typical	Maximum
Optical Data ( 1 )	CW OutputPower	Po	w	70	-	-
	Center Wavelength	λc	nm	940 ±3
	Spectral Width(FWHM)	△λ	nm	-	3	6
	Wavelength Shift with Temperature	△λ/△T	nm/°C	-	0.3	-
	Wavelength Shift with Current	△λ/△A	nm/A	-	0.6	-
Electrical Data	Electrical-to-Optical Efficiency	PE	%	-	52	-
	Operating Current	Iop	A	-	12	13
	Threshold Current	Ith	A	-	1.2	-
	Operating Voltage	Vop	V	-	11.2	12.5
	Slope Efficiency	η	W/A	-	6.5	-
Fiber Data	Core Diameter	Dcore	μm	-	105	-
	Cladding Diameter	Ddad	μm	-	125	-
	Numeric Aperture	NA	-	-	0.22	-
	Fiber Length	Lf	m	-	2	-
	Fiber Loose Tubing Diameter	-	mm	0.9
	Minimum Bending Radius	-	mm	50	-	-
	Fiber Termination	-	-	None
Feedback Isolation	Wavelength Range	-	nm	1400-1600
Feedback Isolation	Isolation	-	dB	-	30	-
Others	ESD	Vesd	V	-	-	500
	Storage Temperature( 2 )	Tst	°C	-20	-	70
	Lead Soldering Temp	Tls	°C	-	-	260
	Lead Soldering Time	t	sec	-	-	10
	Operating Case Temperature( 3)	Top	°C	20	-	30
	Relative Humidity	RH	%	15	-	75

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1470 Nm Laser