Optical minimum-shift keying with external modulation scheme

Takahide Sakamoto; Tetsuya Kawanishi; Masayuki Izutsu

doi:10.1364/OPEX.13.007741

Optical minimum-shift keying with external modulation scheme

Takahide Sakamoto^*, Tetsuya Kawanishi, Masayuki Izutsu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

We propose an optical initial phase control technique for external modulation in the format of minimum-shift keying (MSK). In this scheme, the optical phase discontinuities inherent to external frequency-shift-keying (FSK) modulation are compensated by use of an initial phase controller in conjunction with a FSK modulator. We present the principle of the control method and then numerically and experimentally prove that the signal has a modulation spectrum more compact than that of conventional binary phase-shift keying. 10-Gbit/s external modulation in MSK format was experimentally demonstrated.

Original language	English
Pages (from-to)	7741-7747
Number of pages	7
Journal	Optics Express
Volume	13
Issue number	20
DOIs	https://doi.org/10.1364/OPEX.13.007741
Publication status	Published - 2005 Oct 3
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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N2 - We propose an optical initial phase control technique for external modulation in the format of minimum-shift keying (MSK). In this scheme, the optical phase discontinuities inherent to external frequency-shift-keying (FSK) modulation are compensated by use of an initial phase controller in conjunction with a FSK modulator. We present the principle of the control method and then numerically and experimentally prove that the signal has a modulation spectrum more compact than that of conventional binary phase-shift keying. 10-Gbit/s external modulation in MSK format was experimentally demonstrated.

AB - We propose an optical initial phase control technique for external modulation in the format of minimum-shift keying (MSK). In this scheme, the optical phase discontinuities inherent to external frequency-shift-keying (FSK) modulation are compensated by use of an initial phase controller in conjunction with a FSK modulator. We present the principle of the control method and then numerically and experimentally prove that the signal has a modulation spectrum more compact than that of conventional binary phase-shift keying. 10-Gbit/s external modulation in MSK format was experimentally demonstrated.

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Optical minimum-shift keying with external modulation scheme

Abstract

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