Z. Jiang

Line-by-line pulse shaping control for optical arbitrary waveform generation

We demonstrate line-by-line pulse shaping control for optical arbitrary waveform generation (O-AWG). Independent manipulation of individual spectral lines from a mode-locked frequency comb leads to synthesis of user-specified ultrafast optical waveforms with unprecedented frequency resolution.

Reconfigurable all-optical code translation in spectrally phase-coded O-CDMA

Reconfigurable all-optical code translation are demonstrated in a spectrally phase-coded optical-code-division multiple-access (O-CDMA) testbed with an interference user. For both one-stage and two-stage code translations, less than 0.9-dB power penalties are induced at each code translation. Multistage code translations are investigated via simulation and experimental emulation in a loop pulse shaper to show the potential application of the proposed method for up to several tens of code translations.

Spectral line-by-line pulse shaping

We experimentally demonstrate spectral line-by-line pulse shaping. The shaped pulses overlap in time, which leads to observable fluctuations due to comb-offset frequency variations. Preliminary results of arbitrary waveform generation based on this technique are also presented.

The Impact of Frequency Comb Stability on Optical Arbitrary Waveform Generation

Optical arbitrary waveform generation using the line-by-line pulse shaping technique provides a tool for examining optical frequency stability via time-domain waveform interference. Physical pictures and theoretical modeling results using time and frequency-domain approaches are provided

Optical Arbitrary Pulse Train Generation via Spectral Line-by-Line Pulse Shaping

We demonstrate optical arbitrary pulse generation using spectral line-by-line shaping on a mode-locked fiber laser. The pulse train within each period can be independently controlled as specified.

5-GHz optical arbitrary waveform generation using > 100 independently controlled spectral lines from a compressed phase-modulated CW laser comb

We demonstrate high-fidelity optical arbitrary waveform generation via spectral line-by-line shaping on more than 100 spectral comb lines selected from a compressed phase-modulated CW laser frequency comb with 5 GHz line spacing.

Multi-user, 10 Gb/s spectrally phase coded O-CDMA system: two implementations

We have experimentally demonstrated 4-user, 10 Gbit/s spectrally phase coded O-CDMA using low power nonlinear processing in two implementations, with emphasis on different coding schemes and requirements of timing coordination.

Low power 4/spl times/10 Gb/s O-CDMA system using a double Hadamard code based spectral phase correlator

We demonstrate a 4/spl times/10 Gb/s spectrally phase coded O-CDMA system with ultra-low power (/spl sim/ 30 fJ/bit). Full interference suppression is achieved using a spectral phase correlator based-on SHG in a PPLN waveguide and double Hadamard coding.

Femtosecond Optical Pulse Generation using Line-by-Line Shaping on a Phase-Modulated CW Laser

We demonstrate generation of a high repetition rate femtosecond pulse train using the line-by-line shaping technique on a phase-modulated CW laser. Resulting pulses with FWHM duration of 324 fs at 9 GHz repetition rate are reported after soliton compression

Investigation of Impact of Optical Comb Stability on Optical Arbitrary Waveform Generation via Line-by-Line Pulse Shaping

A phase-modulated CW laser is used to emulate and investigate time-domain waveform noise observed in line-by-line pulse shaping of a mode-locked laser with optical frequency fluctuations