Details

Autor(en) / Beteiligte

• Yokota, Nobuhide
• Igarashi, Ryo
• Yasaka, Hiroshi

Titel

Optical Nyquist pulse generation by using a dual-electrode Mach-Zehnder modulator

Ist Teil von

• Optics letters, 2017-05, Vol.42 (9), p.1856-1859

Ort / Verlag

United States

Erscheinungsjahr

2017

Quelle

OSA_美国光学学会数据库1

Beschreibungen/Notizen

• We demonstrate a simple and efficient optical Nyquist pulse generation by using a dual-electrode Mach-Zehnder modulator (MZM) driven by a combination of fundamental and second-harmonic RF signals. The method is based on a raised-cosine-shaped time filter and time lens created in the MZM under operation conditions given by a simple equation. Optical Nyquist pulses with a roll-off factor of 0.52 and intrinsic conversion efficiency of 37% are experimentally confirmed. Numerical analyses indicate that the roll-off factor can be moderately controlled down to ∼0.3 by increasing relative strength of fundamental RF signals.