10 Gbit/s optical BPSK homodyne detection experiment with solitary DFB laser diodes

Norimatsu, S.; Mawatari, H.; Yoshikuni, Y.; Ishida, Osamu; Iwashita, K.

doi:10.1049/el:19950066

Cited by 14 publications

(7 citation statements)

References 10 publications

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“…Experimental setup is the same as that shown in [16]. For optical sources, strained multi-quantum-well DFB laser diode modules with wavelength of 1535.5 nm and beat linewidth of 174 kHz were used.…”

Section: Methodsmentioning

confidence: 99%

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Optimum optical power splitting ratio of decision driven phase-locked loop in BPSK optical homodyne receiver

Norimatsu

1995

J. Lightwave Technol.

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Abstruct-In a BPSK optical homodyne receiver that utilizes a decision-driven phase-locked loop, the splitting ratio of the received power and that of the local oscillator power are very important parameters in achieving high receiver sensitivity. This paper determines the optimum setting of these parameters considering the influence of the relative intensity noise of the local oscillator and the thermal noise of the preamplifier. The optimum splitting ratio of the local oscillator power to the Q-arm is found to be 0.5. The splitting ratio of the received power to Qarm is obtained as a function of laser linewidth. The optimum setting of the received power and the local oscillator power is independent of the relative intensity noise of the local oscillator, the thermal noise of the preamplifier and the bit rate. At the optimum splitting ratios, required beat linewidth is obtained as x lOP3/Tb (T/Tb (( 1) and 2.99 x W 3 / r (T/Tb >> I), whereTb is the bit duration and r is the loop propagation delay time. We show that the total power penalty of 0.8 dB from the shot noise limit can be realized with the relative intensity noise of -170 dB/Hz and equivalent input noise current of 10 p A / a , even if an imperfect balanced receiver is utilized; quantum efficiency ratio of the twin-photodetector is 0.96, propagation time difference T/Tb is 0.01. To confirm the theoretical model, a BPSK homodyne detection experiment is performed and good agreement is found between theoretical and experimental results.

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Section: Methodsmentioning

confidence: 99%

“…This paper considers the optical 90"-hybrid, which consists of an optical coupler having a coupling ratio of E and two polarization beam splitters as shown in Fig. 1 [9]- [ll], [16], [6]. This is because the splitting ratio of Detail configuration of I-arm port.…”

Section: Formulas For Analysismentioning

confidence: 99%

Optimum optical power splitting ratio of decision driven phase-locked loop in BPSK optical homodyne receiver

Norimatsu

1995

J. Lightwave Technol.

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“…Such a slow tuning was fast enough for phase locking thanks to the excellent stability and narrow linewidth of the Nd:YAG lasers used. * Multi-electrode DFB lasers were examined in [23]; with respect to a single-electrode DFB, multi-electrode DFB lasers respond to a frequency modulation with a reduced phase rotation. The phase rotation was proved to be limited to 36°, which is a small enough value for the OPLL stability.…”

Section: Phase-locking Techniquesmentioning

confidence: 99%

Optical Phase Locking techniques: an overview and a novel method based on Single Side Sub-Carrier modulation

Ferrero¹,

Camatel²

2008

Opt. Express

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A short overview on Optical Phase locking techniques and a detailed description of the Phase Locking technique based on Sub-Carriers modulation is presented. Furthermore, a novel Single Side Sub-Carrier-based Optical Phase Locked Loop (SS-SC-OPLL), with off the shelf optical components, is also presented and experimentally demonstrated. Our new method, based on continuous wave semiconductor lasers and optical single side sub-carrier modulation using QPSK LiNbO(3) modulator, allows a practical implementation with better performance with respect to the previously proposed OPLL circuits, and permits an easy use in real time WDM signal coherent demodulation.

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“…The use of an acousto-optic modulator was also proposed in order to tune the frequency of a CW HeNe gas laser [3]. Multi-electrode DFB lasers were also used [4]; they respond to a frequency modulation with a reduced phase rotation. Several OPLL designs are known; the most common are balanced OPLLs [3], [5]- [7] and Costas or decision-driven OPLLs [4], [8]- [11].…”

Section: Introductionmentioning

confidence: 99%

Design, Analysis and Experimental Testing of BPSK Homodyne Receivers Based on Subcarrier Optical Phase-Locked Loop

Camatel

Ferrero

2008

J. Lightwave Technol.

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The analysis of a subcarrier optical phase-locked loop (SC-OPLL) is carried out in order to optimize phase-locking performance. A new parameters optimization procedure, useful for OPLL design, is demonstrated theoretically and experimentally. An SC-OPLL based on this procedure has been realized, so a pilot carrier SC-OPLL and a nonlinear SC-OPLL optical receiver have been experimentally constructed and tested. An 8B/10B line coding is employed for pilot carrier SC-OPLL receiver in order to improve performance and a new architecture of decision-driven PLL is experimentally demonstrated.

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10 Gbit/s optical BPSK homodyne detection experiment with solitary DFB laser diodes

Cited by 14 publications

References 10 publications

Optimum optical power splitting ratio of decision driven phase-locked loop in BPSK optical homodyne receiver

Optimum optical power splitting ratio of decision driven phase-locked loop in BPSK optical homodyne receiver

Optical Phase Locking techniques: an overview and a novel method based on Single Side Sub-Carrier modulation

Design, Analysis and Experimental Testing of BPSK Homodyne Receivers Based on Subcarrier Optical Phase-Locked Loop

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