We demonstrate the first C-band InAs quantum dash (Qdash) waveguide photodiodes (PDs) with a record-low dark current of 5 pA, a responsivity of 0.26 A/W at 1.55 μm, and open eye diagrams up to 10 Gb/s.
We review advances in the timing stabilization of self mode-locked and passively mode-locked
frequency comb semiconductor lasers in the infrared spectral range. Prospects of pulse train timing and
amplitude stability control, intermode beat frequency or pulse repetition rate agility, timing
synchronization and high peak power optical pulse generation are discussed. A mechanism responsible
for the timing stability control and intermode beat frequency or repetition rate agility of monolithic self