Mode-locked fiber ring laser

Details Mode-locked fiber ring laser Mode-locked fiber ring laser

H - Electricity

01

S

H01S 3/083 (2006.01) H01S 3/067 (2006.01) H01S 3/136 (2006.01) H01S 3/098 (2006.01)

Patent

CA 2152874

A passively mode-locked fiber ring laser (LAS) is disclosed for generating optical pulses whose repetition frequency is settable. The mode-locked fiber ring laser (LAS) contains an erbium-doped fiber (ER), a ring resonator (RES), a pump-light source (PUMP), an optical modulator (MOD), and a feedback loop (RS). A portion of the signal light, which is produced by stimulated emission and is composed of a plurality of pulse repetition frequencies, is processed in the feedback loop ( RS) into a drive signal which is coupled to the control input of the optical modulator (MOD). The feedback loop ( RS) includes an adjustable filter which filters the desired pulse repetition frequency from the signal light. Thus, optical pulses of a given repetition frequency are developed in the ring resonator ( RES) and at the output (OUT) of the passively mode-locked fiber ring laser (LAS).

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