Product category:
Lasers
News Release from: Pacer International | Subject: AC3-808B and AC3-808BW
Edited by the Electronicstalk Editorial
Team on 25 January 2008
Laser pump sources offer long lifetimes
Alfalight's technology for wavelength stabilisation minimises wavelength shift over temperature, enabling air-cooled operation.
Alfalight has released the AC3-808B and AC3-808BW high-brightness 30W 808nm fibre laser pump sources based on high-reliability single-emitter (SE) laser diodes The new third-generation combined power modules (CPM III) provide over 20,000 hours MTTF and do not suffer the catastrophic failure mode inherent in conventional bar-based emitters
This article was originally published on Electronicstalk on 26 Dec 2000 at 8.00am (UK)
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Compact CPM III modules include a thermistor for temperature monitoring and are available in both standard BAL (808+/-3nm) and integrated wavelength stabilisation technology (WST) (808+/-1.5nm) versions.
Alfalight's technology for wavelength stabilisation minimises wavelength shift over temperature, enabling air-cooled operation.
Target markets include industrial end-pumped DPSS lasers for Nd:YAG or Nd:YVO4 systems for material cutting and processing, light welding, marking and printing.
"The CPM III leverages the stabilised performance of Alfalight's 808nm WST single emitter pump diodes to produce 30W of light output with greatly extended reliability", said Ron Bechtold, Vice President of Sales and Marketing at Alfalight.
"We expect that a range of customers will be able to take immediate advantage of these new modules as a cost-competitive upgrade to existing fibre-coupled bar-based DPSS laser systems or to move to new lower-cost air-cooled designs".
The Alfalight CPM III series modules combine seven single-emitter diodes to provide 30W of 808nm fibre-coupled light output.
Use of a 685um fibre bundle with 0.15 NA gives higher brightness and easy incorporation into an existing fibre-coupled bar based 0.22 NA systems.
Alfalight's proprietary WST devices integrate a holographically-defined semiconductor grating at the wafer level to provide a "stable lock window" wherein the wavelength drift is controlled to 0.07nm/C.
The lock window is typically 30 to 40C wide and spans the operating power range of the device.
Due to the highly optimised monolithic design, the efficiency and reliability are on par with nonstabilised devices without the added cost or complexity of external-grating approaches.
The Alfalight CPM III 808nm 30 W modules are available in a 85 x 69 x 17mm lightweight aluminium case.
A 1m armoured cable with SMA905 optical output connector is attached to the module. Request a free brochure from Pacer International ...
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