Wavelength conversion using four-wave mixing with two nondegenerated pumps in a wavelength-selectable laser

Takasi Simoyama; Haruhiko Kuwatsuka; Martin Bouda; Manabu Matsuda; Yuji Kotaki; Hiroshi Ishikawa

doi:10.1117/12.432612

9 July 2001 Wavelength conversion using four-wave mixing with two nondegenerated pumps in a wavelength-selectable laser

Takasi Simoyama, Haruhiko Kuwatsuka, Martin Bouda, Manabu Matsuda, Yuji Kotaki, Hiroshi Ishikawa

Proceedings Volume 4283, Physics and Simulation of Optoelectronic Devices IX; (2001) https://doi.org/10.1117/12.432612
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

We demonstrated four-wave mixing (FWM) with two pumps in a wavelength selectable laser to achieve a wide conversion bandwidth. Non-degenerated FWM with dual pumps in SOAs has been proposed to flatten the conversion efficiency variation accompanied with the variation of detunings between input signal and output conjugate. By utilizing a wavelength selectable laser, this complex scheme can be easily realized by a single device. We used a wavelength selectable laser, which consists of an 8-channel DFB laser array connected to an multi-mode interference (MMI) combiner with an SOA at its output. The DFBs had different lasing wavelengths with 3.18 nm spacing. We introduced a signal wave through one of the DFB lasers, and two of the lasers were used as pump sources. The wavelength of the signal and one of the pumps were fixed. The wavelength of the output conjugate was changed by switching to a different second pump laser. Conversion efficiencies between -14 and -16 dB were observed with wavelength detunings between 8 and 27 nm. An efficiency variation as small as 2 dB over a 2 THz frequency detuning range was achieved, in contrast to more than 5 dB variation in single pump schemes.

Citation Download Citation

Takasi Simoyama, Haruhiko Kuwatsuka, Martin Bouda, Manabu Matsuda, Yuji Kotaki, and Hiroshi Ishikawa "Wavelength conversion using four-wave mixing with two nondegenerated pumps in a wavelength-selectable laser", Proc. SPIE 4283, Physics and Simulation of Optoelectronic Devices IX, (9 July 2001); https://doi.org/10.1117/12.432612

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