Abstract

High repetition-rate optical pulse trains are widely used in high-speed optical communication, optical sampling, and microwave photonics. Pulse repetition-rate multiplication (RRM) outside laser cavity is of particular interest when the target rate is not readily available. RRM is generally achieved by spectral amplitude filtering, manifested by increased comb spacing of the spectrum, using pulse shaper or optical tapped delay line structure [1]. Another approach is spectral phase filtering, also known as temporal Talbot effect without altering the input spectrum. Typical methods include using linearly chirped fibre Bragg grating, or pulse shaper. Ring-resonator based filters [2] have been proposed to provide temporal Talbot condition, but need stringent control of both coupling coefficient and round-trip phase. Here, we show that temporal Talbot effect, as well as versatile combinations of amplitude and phase filtering can also be implemented in a simple tapped delay line structure, hence very promising for on-chip temporal Talbot multiplier.

© 2019 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription