Linearity enhancement of analog optical transmitter using gain saturated reflective semiconductor optical amplifier

Yin Xing Piao, Yong Yuk Won, Sang Kook Han

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We propose a new linearization scheme in optical external modulator employing high-pass filter characteristic of a gain saturated reflective semiconductor optical amplifier for an analog optical transmission system. The proposed scheme is based on power level relation between fundamental signal and IMD3 signal when a radio-frequency tone is modulated, using an optical modulator at linearity region of transfer curve. Based on the proposed idea, a linearized optical transmitter module is implemented and evaluated. The proposed scheme is demonstrated and verified using a small scale test-bed. Both carrier-to-interference ratio and spurious-free dynamic range are improved.

Original languageEnglish
Pages (from-to)2100-2103
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume51
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

Fingerprint

Semiconductor optical amplifiers
Light modulators
light amplifiers
transmitters
linearity
modulators
analogs
high pass filters
High pass filters
augmentation
test stands
linearization
Light transmission
Linearization
dynamic range
radio frequencies
modules
interference
curves
Optical transmitters

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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Linearity enhancement of analog optical transmitter using gain saturated reflective semiconductor optical amplifier. / Piao, Yin Xing; Won, Yong Yuk; Han, Sang Kook.

In: Microwave and Optical Technology Letters, Vol. 51, No. 9, 01.09.2009, p. 2100-2103.

Research output: Contribution to journalArticle

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