Rate multiplication by double-passing fabry-Perot filtering

Abstract

Abstract-We present a new technique for extending the decay time of the impulse response function of a Fabry-Pérot filter while simultaneously maintaining a large bandwidth. It involves double passing through the filter and it can be used for the easy multiplication of the repetition rate of optical sources. We apply the concept to a 10-GHz pulse train to demonstrate experimentally the rate quadruplication to 40 GHz.

Spectral line‐by‐line shaping for optical and microwave arbitrary waveform generations

“…Recently, several research groups have been exploring techniques for generating periodic pulse trains at repetition rates beyond those achievable by mode locking or direct modulation. One alternative is repetitionrate multiplication (RRM) of a lower rate source by applying amplitude [15][16][17] or phase [18][19][20] spectral filtering. A technique based on the temporal Talbot effect [21] is a simple and efficient method, as it simply requires the propagation of the pulse train in a first-order dispersive medium.…”

Improvement of a Pound-Drever-Hall Technique to Measure Precisely the Free Spectral Range of a Fabry-Perot Etalon

“…Highfinesse FPEs have been used for linewidth reduction or frequency stabilization of a semiconductor laser, optoelectronic oscillators, WDM filtering, and so on [1][2][3]. They have also been used for repetition-rate multiplication of pulsed lasers by spectral filtering [4][5][6]. Recently, an FPE was used inside a mode-locked laser cavity to stabilize or to lock the laser comb to the FPE transmission (TX) peaks [7,8].…”

High-Q Microring Resonator with Narrow Free Spectral Range for Pulse Repetition Rate Multiplication

“…Recently, the spectrally periodic filtering characteristics of microrings have received increasing interests for pulse repetition-rate multiplication (PRRM) in optical communication systems [2,3]. Fabry-Perot filters [4] and fiber Bragg gratings [5] have already been utilized for realizing PRRM. However, these devices are bulky, sensitive to ambient conditions, and not suitable for on-chip integration.…”