nLIGHT | High-Power Semiconductor Lasers and Fibers - Cascades™ Actively Cooled Diode Laser Bars (nv)

HIGH-POWER SEMICONDUCTOR LASERS AND FIBERS

Products > Diodes > Cascades™ Micro-Channel Cooled Diode Laser Bars

CASCADES™ ACTIVELY COOLED DIODE LASER BARS (NON VISIBLE)

nLIGHT’s non visible micro-channel, actively cooled Cascades™ diode laser bars provide end users with state-of-the-art power, brightness and reliability. These 1 cm bars are based on our proprietary MOCVD structures which offer low beam divergence and narrow spectral bandwidth.

Our Cascades™ actively cooled diode laser bars are available in a wide range of wavelengths from 808 nm to beyond 2000 nm. The design of these devices allows multiple packages to be placed side by side. Available with an optional water manifold for ease of use.

		C1-xxx-yyy¹
Optical
Center wavelength (Range)	nm	790 - 825	790 - 825	790 - 825
Center wavelength tolerance	nm	± 3	± 3	± 3
CW output power / bar	W	60	80	100
Bar length	cm	1	1	1
Number of emitters / bar	#	49	64	64
Emitter size	µm	100	100	100
Emitter spacing	µm	200	150	150
Spectral width (FWHM)	nm	< 3	< 3	< 3
Slope efficiency	W / A	> 1.1	> 1.05	> 1.0
Polarization	TM or TE	TM	TM	TM
Fast-axis divergence (FWHM)	Degrees	36°	36°	36°
Slow-axis divergence (FWHM)	Degrees	10°	10°	10°
Wavelength temperature coefficient²	nm / °C	0.28	0.28	0.28
Electrical
Power conversion efficiency	%	55	48	48
Threshold current (I_TH)	A	14	24	26
Operating current (I_OP)	A	60	92	110
Operating voltage / bar (V_OP)	V	1.8	1.8	1.85
Series resistance / bar (R_S)	Ω	0.005	0.005	0.005
Mechanical
Storage temperature range³	°C	10 to 40	10 to 40	10 to 40
Thermal
Thermal resistance⁴	°C / W	0.35	0.35	0.35
Operating temperature	°C	20 to 35	20 to 35	20 to 35
Fluid flow rate	ml/min/plate	200 - 250	200 - 250	200 - 250
Max inlet pressure	psi	55	55	55
Inlet to outlet pressure drop	psi	35	35	35
Deionized water resistivity	MΩ - cm	0.15 - 0.3	0.15 - 0.3	0.15 - 0.3
Filter	µm	< 20	< 20	< 20

		C1-xxx-yyy¹
Optical
Center wavelength (Range)	nm	910 - 980	910 - 980	1400 - 1600
Center wavelength tolerance	nm	± 3	± 3	± 5
CW output power / bar	W	60	80	25
Bar length	cm	1	1	1
Number of emitters / bar	#	49	49	19
Emitter size	µm	100	100	100
Emitter spacing	µm	200	200	500
Spectral width (FWHM)	nm	< 4	< 4	< 10
Slope efficiency	W / A	> 0.9	> 0.9	> 0.4
Polarization	TM or TE	TE	TE	TE
Fast-axis divergence (FWHM)	Degrees	38°	38°	27°
Slow-axis divergence (FWHM)	Degrees	10°	10°	10°
Wavelength temperature coefficient²	nm / °C	0.3	0.3	0.4
Electrical
Power conversion efficiency	%	50	52	30
Threshold current (I_TH)	A	8	12	10
Operating current (I_OP)	A	70	95	70
Operating voltage / bar (V_OP)	V	1.6	1.6	1.2
Series resistance / bar (R_S)	Ω	0.005	0.005	0.005
Mechanical
Storage temperature range³	°C	10 to 40	10 to 40	10 to 40
Thermal
Thermal resistance⁴	°C / W	0.35	0.35	0.35
Operating temperature	°C	20 to 35	20 to 35	20 to 35
Fluid flow rate	ml/min/plate	200 - 250	200 - 250	200 - 250
Max inlet pressure	psi	55	55	55
Inlet to outlet pressure drop	psi	35	35	35
Deionized water resistivity	MΩ - cm	0.15 - 0.3	0.15 - 0.3	0.15 - 0.3
Filter	µm	< 20	< 20	< 20

¹	C1-xxx-yyy: xxx denotes wavelength and yyy denotes rated output power.
²	The wavelength temperature coefficient is the wavelength shift per °C change at the diode junction.
³	A non-condensing environment is required for storage and operation below ambient dew point.
⁴	Thermal resistance is the diode junction temperature shift per incremental Watt of heat load.

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