Optoelectronics

Laser Features Superior Output for FBG Writing

21st February 2012
ES Admin
The new BraggStar M from Coherent, Inc delivers high pulse energy and superior spatial coherence for fiber Bragg grating (FBG) writing. High pulse energy is a critical advantage in some FBG writing applications, and high spatial coherence is always beneficial since it enables creation of FBGs with higher contrast and/or longer length. And because it can be operated at repetition rates of up to 100 Hz, the BraggStar M supports high throughput production of FBGs.
The BraggStar M uses a coherence-enhanced optical design at the dominant FBG-writing wavelength of 248 nm, resulting in significantly higher spatial coherence compared to conventional broad-use excimer lasers. This new laser also features the twin advantages of a compact design and ease of operation. Moreover, the new BraggStar M is based on the field-proven COMPex platform that is specifically designed for high reliability. The success of the high-reliability COMPex platform is evidenced by the more than 2,500 installed units worldwide.

The BraggStar M is ideal for creating FBGs for a broad range of applications. These include reflectors in fiber lasers and reference wavelength stabilization in wavelength division multiplex (WDM) telecom apps, as well as fiber sensing applications.

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