Ultralow jitter silica microcomb

Ultralow-repetition-rate pulses with ultralow jitter generated by passive mode-locking of an optoelectronic oscillator

We demonstrate the generation of an ultralow-repetition-rate pulse train with a repetition rate of 19.6 kHz by passive mode-locking of an optoelectronic oscillator. The pulse-to-pulse timing jitter equals 0.06 ppm of the repetition time of the pulses. No significant dependence of pulse duration, pulse waveform, and timing jitter was observed when the cavity length was changed from 150 to 10,400...

Mechanical behavior of ultralow-dielectric-constant mesoporous amorphous silica

Attosecond timing jitter modelocked lasers and ultralow phase noise photonic microwave oscillators

Photonic microwave oscillator based on optical frequency comb and ultrastable optical reference cavity represents the state-of-the-art solution to generate X-band microwaves of ultralow phase noise. Such high-quality microwave source enables a range of applications in which frequency stability and timing accuracy are essential to performance. Wide use of this technology, however, requires compa...

Broadband noise limit in the photodetection of ultralow jitter optical pulses.

Applications with optical atomic clocks and precision timing often require the transfer of optical frequency references to the electrical domain with extremely high fidelity. Here we examine the impact of photocarrier scattering and distributed absorption on the photocurrent noise of high-speed photodiodes when detecting ultralow jitter optical pulses. Despite its small contribution to the tota...

Ultralow-jitter, 1550-nm mode-locked semiconductor laser synchronized to a visible optical frequency standard.

Using high-bandwidth feedback, we have synchronized the pulse train from a mode-locked semiconductor laser to an external optical atomic clock signal and achieved what is to our knowledge the lowest timing jitter to date (22 fs, integrated from 1 Hz to 100 MHz) for such devices. The performance is limited by the intrinsic noise of the phase detector used for timing-jitter measurement. We expect...