Effective Mitigation of Gain Narrowing in CPA-Based Lasers Using Tailored Fiber Stretchers

Today many industrial, medical, and scientific applications benefit from the advantages provided by short-pulse lasers. Various physical effects must be controlled by laser designers to prevent the pulse duration from lengthening beyond the requirements of laser processes. Gain narrowing is one of these mechanisms that must be countered, as we will discuss in this application note, with an emphasis on CPA (Chirped Pulse Amplification) laser systems.

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