$C$-Band Optical 90$^{\circ}$-Hybrids Based on Silicon-on-Insulator 4 $\times$ 4 Waveguide Couplers

Zimmermann, Lars; Voigt, K.; Winzer, G.; Petermann, K.; Weinert, C.M.

doi:10.1109/lpt.2008.2009317

Cited by 71 publications

(29 citation statements)

References 9 publications

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“…The approach relies on miniaturized silicon photonic MZMs realized by 2x2 MMI couplers which are proven robust devices with respect to fabrication tolerances for their excellent repeatability and stable performance under temperature fluctuations [8].…”

Section: Icso 2014mentioning

confidence: 99%

Application of photonics in next generation telecommunication satellites payloads

Anzalchi

Inigo

Roy

2017

International Conference on Space Optics — ICSO 2014

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Section: Icso 2014mentioning

confidence: 99%

Application of photonics in next generation telecommunication satellites payloads

Anzalchi

Inigo

Roy

2017

International Conference on Space Optics — ICSO 2014

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“…In lieu of the local oscillator, the incoming signal is delayed by τ, and this copy is fed into the 2 × 4 optical hybrid in order to interfere with the original signal. Multiple variations of 2 × 4 optical hybrids exist, implemented by discrete couplers, by star-couplers [19] or by multimode interference couplers [20]. The outputs are identical to the ones of the DI front end.…”

Section: Polmux Transmission and Self-coherent Receptionmentioning

confidence: 99%

A self-coherent receiver for detection of PolMUX coherent signals

Li¹,

Schmogrow²,

Hillerkuss³

et al. 2012

Opt. Express

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A self-coherent receiver capable of demultiplexing PolMUXsignals without an external polarization controller is presented. Training sequences are introduced to estimate the polarization rotation, and a decision feedback recursive algorithm mitigates the random walk of the recovered field. The concept is tested for a PolMUX-DQPSK modulation format where one polarization carries a normal DQPSK signal while the other polarization is encoded as a progressive phase-shift DQPSK signal. An experimental demonstration of the scheme for a 112 Gbit/s PolMUX-DQPSK signal is presented.

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“…Although manufacturing deviations are of fundamental importance in final hybrid's performance, there has been little research on understanding the combined impact of all of them at the same time or how they ultimately affect overall system penalty. On one hand, previous numerical estimations of MMI's bandwidth have considered nominal design values while sweeping operation wavelength [8], [12]. At most, 1-D sweeps at a single wavelength of some geometrical features have been performed in 2 Â 2 [14] and 4 Â 4 MMIs [13].…”

Section: Introductionmentioning

confidence: 99%

Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

Beltrán

Llorente

2011

J. Lightwave Technol.

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A numerical study of the impact that manufacturing tolerances have on the performance of an InP 4 Â 4 MMI working as a 90 optical hybrid is presented, including simultaneous variations of width, thickness, and refractive index over the C and L bands. Simulation results for different figures of merit, such as optical common-mode rejection ratios (CMRRs) and phase errors, are provided for both nominal and worst case scenarios. Additionally, system simulations are performed to compute imbalance-induced power penalty. Our results indicate that the combined effect of realistic foundry tolerances on device performance is significant. In particular, a fourfold reduction is predicted between nominal ('40 nm) and worst cases ('10 nm) when optical CMRRs and phase errors are compared against Optical Internetworking Forum specifications. By contrast, a much greater bandwidth is expected at the system level (! 40 nm) if a power penalty of less than 1 dB ð@BER ¼ 10 À3 Þ is to be allowed. In fact, worst case power penalties lower than 0.25 dB are predicted over the full C band, which further proves the great potential of integrated 4 Â 4 MMIs as wide-bandwidth devices for mass production of coherent receivers using state-ofthe-art integration technologies.

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$C$-Band Optical 90$^{\circ}$-Hybrids Based on Silicon-on-Insulator 4 $\times$ 4 Waveguide Couplers

Cited by 71 publications

References 9 publications

Application of photonics in next generation telecommunication satellites payloads

Application of photonics in next generation telecommunication satellites payloads

A self-coherent receiver for detection of PolMUX coherent signals

Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

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$C$-Band Optical 90$^{\circ}$-Hybrids Based on Silicon-on-Insulator 4 $\times$ 4 Waveguide Couplers

Cited by 71 publications

References 9 publications

Application of photonics in next generation telecommunication satellites payloads

Application of photonics in next generation telecommunication satellites payloads

A self-coherent receiver for detection of PolMUX coherent signals

Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

Contact Info

Product

Resources

About

A self-coherent receiver for detection of PolMUX coherent signals