Polarization-beam-splitter-less integrated dual-polarization coherent receiver

Alonso-Ramos, C.; Reyes-Iglesias, P. J.; Ortega‐Moñux, Alejandro; Pérez‐Galacho, Diego; Halir, Robert; Molina-Fernández, I.

doi:10.1364/ol.39.004400

Cited by 6 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, in nonlinear optics, materials with large off-diagonal nonlinear susceptibility terms can be used to enhance the harmonic generation when two modes with orthogonal polarizations are mixed [41]. Last but not least, polarization-division-multiplexing [46] is widely used in high speed communication systems due to its ability to enlarge the capacity and data rates of these systems and as such devices, like, dual-polarization modulator [47][48][49], transmitter [50,51], and receiver [52][53][54] are actively explored for realizing dual-polarization photonic integrated circuits.…”

Section: Introductionmentioning

confidence: 99%

Dual-Polarization Second-Order Photonic Topological Insulators

et al. 2021

View full text Add to dashboard Cite

Second-order photonic topological insulators that host highly localized corner states resilient to defects, are opening new routes towards developing fascinating photonic devices. However, the existing works on second-order photonic topological insulators have mainly focused on either transverse magnetic or transverse electric modes. In this paper, we propose a dual-polarization topological photonic crystal structure for both transverse magnetic and transverse electric modes through topology optimization. Simple tight-binding lattice models are constructed to reveal the topological features of the optimized photonic crystal structure in a transparent way. The optimized dual-polarization second-order photonic topological insulator hosts four groups of corner states with different profiles and eigenfrequencies for both the transverse magnetic and transverse electric modes. Moreover, the robustness of theses corner states against defects is explicitly demonstrated. Our results offer opportunities for developing polarization-independent topological photonic devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Dual-Polarization Second-Order Photonic Topological Insulators

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This is possible with the receiver structure shown in Fig. 4(b), where polarization demultiplexing is implemented by a combination of birefringence engineered waveguides on the chip (phase assisted distribution network), and the local laser input fiber being aligned with 45º tilt in its polarization axis respect to the chip [11]. In terms of fabrication tolerances such a device is far more robust than implementations relying on integrated polarization splitters.…”

Section: A Pol-mux Receiver Architecture Without Polarization Splittersmentioning

confidence: 99%

Colorless devices and reception techniques for polarization multiplexed communications

Halir

Reyes-Iglesias

Alonso-Ramos

et al. 2015

2015 17th International Conference on Transparent Optical Networks (ICTON)

View full text Add to dashboard Cite

Future optical networks call for flexible, high performance and low cost coherent optical receivers. We present here several advances towards such receivers, including integrated optical couplers with ultra-broad bandwidth, as well as novel reception techniques and architectures that will enable high performance coherent reception without filtering and polarization splitting elements.Keywords: coherent receivers, colorless operation, multimode interference couplers, polarization splitters, OSNR penalty, receiver architectures INTRODUCTIONOptical transmission networks are evolving from classical long-haul scenarios towards flexible, high speed optical access networks [1]. These networks call for optical components that offer high performance and low cost while being suitable for diverse network scenarios. This has spurred interest in coherent receivers that can provide colorless operation in a broad spectral range and can work with a wide range of input powers, i.e. offer high dynamic range [2]. In order to achieve rugged devices and reduced costs, such receivers would ideally be fabricated as monolithically integrated chips. As shown in Fig. 1, this requires, among other factors, the integration of polarization beam splitters (for polarization multiplexing) and high performance 90º hybrids combined with high speed photodiodes (for optical down-conversion); trans-impedance amplifiers are typically wire-bonded to the optical chip. While important advances have been achieved in both aspects [3], [4], it is still challenging to achieve high-yield (and thus economically viable) solutions for 90º hybrids simultaneously covering the C+L bands (1530nm -1625nm) or fully passive on-chip polarization splitters.

show abstract

Subwavelength-Structure-Assisted Ultracompact Polarization-Handling Components on Silicon

Liu

et al. 2022

J. Lightwave Technol.

View full text Add to dashboard Cite

Polarization-beam-splitter-less integrated dual-polarization coherent receiver

Cited by 6 publications

References 9 publications

Dual-Polarization Second-Order Photonic Topological Insulators

Dual-Polarization Second-Order Photonic Topological Insulators

Colorless devices and reception techniques for polarization multiplexed communications

Subwavelength-Structure-Assisted Ultracompact Polarization-Handling Components on Silicon

Contact Info

Product

Resources

About