Dan Marom - Profile on Academia.edu (original) (raw)

Papers by Dan Marom

Nonlinear Polymeric Waveguide with Nanocomposite Core of Dispersed CdSe Quantum Dots in PFCB

We present our implementation of waveguides for nonlinear interactions constructed of 1.3% volume... more We present our implementation of waveguides for nonlinear interactions constructed of 1.3% volume concentration CdSe quantum dots in PFCB polymer. Propagation loss of 1.5 dB/cm was measured for 1.7×1.7μm2 rib waveguide. FWM phenomena was observed.

Free-standing, microscale, mode-selective photonic lantern supported by a truss structure

We design, fabricate and characterize a three-mode selective photonic lantern using 3D waveguides... more We design, fabricate and characterize a three-mode selective photonic lantern using 3D waveguides made of photopolymer core and air cladding. Although the waveguides exhibit high index contrast, cross-talk between mode groups measures below -10dB.

Third order nonlinear waveguide with CdSe quantum dots in PFCB nanocomposite core

We present our implementation of waveguides for third order nonlinear interactions constructed of... more We present our implementation of waveguides for third order nonlinear interactions constructed of 1.3% volume concentration CdSe quantum dots in PFCB polymer. FWM phenomena was observed and waveguide nonlinear coefficient of 7(Wm)−1 was evaluated.

Routing Capacity of Contention/-less SDM-ROADM Design

We evaluate the switching capacity of ROADM nodes for space division multiplexed (SDM) networks c... more We evaluate the switching capacity of ROADM nodes for space division multiplexed (SDM) networks considering the joint and independent switching of spatial channels. We account for total switching functions (routing and add/drop) and quantify the impact of contentional and partial-contentional features and the reduction of switching capacity with respect to colorless, directionless, and contentionless SDM-ROADM.

Impact of Contention/-less ROADM Nodes on Total Network Node Switching Capacity

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018

Previous estimates of ROADM design focus on connection states of WSS. Here we account for total s... more Previous estimates of ROADM design focus on connection states of WSS. Here we account for total switching functions (routing and add/drop) and quantify the impact of contention/-less designs.

Design and Realization of Air-Cladded, Polymer Optical Waveguides Supported only by a Narrow Fin

OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF), 2020

Single-mode polymer optical waveguides with air cladding, supported only by a narrow fin, were de... more Single-mode polymer optical waveguides with air cladding, supported only by a narrow fin, were designed and fabricated by direct laser writing technique. The waveguides offer low bending losses and high confinement with increasing core diameter.

Photopolymer Ring-Resonator Based Temperature Sensor Directly 3D Printed on a Dual-Core Optical Fiber Tip

Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES), 2022

We 3D-print a nanofin-supported waveguide bridging two cores at the fiber tip and further coupled... more We 3D-print a nanofin-supported waveguide bridging two cores at the fiber tip and further coupled to a printed ring resonator. The resonance wavelength shift is probed from the fiber’s distal end, shifting by 47 pm/°K.

Rectangular versus circular fiber core designs: New opportunities for mode division multiplexing?

Optical Fiber Communication Conference, 2017

The properties of rectangular core fiber are investigated for mode division multiplexing. Polariz... more The properties of rectangular core fiber are investigated for mode division multiplexing. Polarization degenerate mode groups, favorable mode profiles for device coupling, modal area uniformity, and good splice performance suggest it's a good candidate.

Microscale Sol-Gel Optical Devices Printed by Two-Photon Polymerization and Direct Laser Writing

The synthesis of a sol-gel based photoresist for high precision 3D printing with two photon polym... more The synthesis of a sol-gel based photoresist for high precision 3D printing with two photon polymerization direct laser writing is described. The design and fabrication of a photonic lantern operating at 1550um are demonstrated.

Third order nonlinearity of a PFCB polymer core rib waveguide

Optical Materials Express, Jun 7, 2022

Third Order Nonlinear Waveguide Nanocomposite Core-Fabrication and Characterization

Fabrication and characterization of nonlinear waveguide with nanocomposite core of CdSe QDs in PF... more Fabrication and characterization of nonlinear waveguide with nanocomposite core of CdSe QDs in PFCB polymer is reported. Linear characterization resulted with propagation and coupling loss of 1.4 dB/cm and 2.44dB/facet respectively. Using four-wave-mixing, nonlinear coefficient of 0.2(mathrmWcdotmathrmm)−10.2(\mathrm {W}\cdot \mathrm {m})^{-1}0.2(mathrmWcdotmathrmm)−1 and 0.27(mathrmWcdotmathrmm)−10.27(\mathrm {W}\cdot \mathrm {m})^{-1}0.27(mathrmWcdotmathrmm)−1 was measured for TE and TM with no TPA.

Impact of Joint and Independent Switching Paradigms on Routing Capacity of Contention/-less SDM-ROADM Design

We report a method to evaluate the switching capacity of ROADM nodes for space division multiplex... more We report a method to evaluate the switching capacity of ROADM nodes for space division multiplexed (SDM) networks considering the joint and independent switching of spatial channels. We account for total switching functions (routing and add/drop) and quantify the impact of wavelength contentional and partial wavelength-contentional (PWC) features and the reduction of switching capacity with respect to colorless, directionless, and contentionless (CDC) SDM-ROADM. We observe that the performance of PWC SDM-ROADM with large number of contentional WSS units converges towards CDC SDM-ROADM.

Mode characterization of rectangular core fiber

A few-mode fiber prototype having a rectangular core geometry is experimentally characterized for... more A few-mode fiber prototype having a rectangular core geometry is experimentally characterized for its modal delays and field profiles by time-gated interferogram analysis. Excellent agreement between experimental and numerical simulations is established.

Space Division Multiplexed Optical Networks

The International Commission for Optics, May 16, 2017

Switching solutions for spatial and spectral multiplexed networks

International Conference on Photonics in Switching, Jul 3, 2016

Space division multiplexing offers a transmission capacity multiplier in fiber links, in advance ... more Space division multiplexing offers a transmission capacity multiplier in fiber links, in advance of the looming ‘capacity crunch’ projected for SMF-based systems. We present efficient and cost effective switching solutions for WDM-SDM channel routing.

Design and System Benefits of Integrated Multi-Core Wavelength-Selective Switch

Strong mixing in mode division multiplexed fiber reduces group delay spread, mode dependent loss ... more Strong mixing in mode division multiplexed fiber reduces group delay spread, mode dependent loss (MDL), and accumulated nonlinearity. Previously we demonstrated that it also broadens the passband of cascaded few-mode WSS passages. Here we analyze the performance of multi-core WSSs, and the favorable impact of strong coupling for MC-WSS cascades.

Design of Multi-Core Integrated Wavelength-Selective Switch, and its System Benefits

Strong mixing in mode division multiplexed fiber is advantageous in many aspects. Its averaging e... more Strong mixing in mode division multiplexed fiber is advantageous in many aspects. Its averaging effect reduces group delay spread, mode dependent loss (MDL), and accumulated nonlinearity. We demonstrated in the past that it also broadens the passband of cascaded few-mode WSS passages. In this paper, we analyze the performance of multicore WSS, and the favorable impact of strong coupling for MCF-WSS cascades, taking into account the asymmetry of the MCF.

Wavelength Demultiplexer Operating over Mode Division Multiplexed Signals on Ribbon Fiber

We introduce a wavelength demultiplexer operating with multimode waveguides of rectangular geomet... more We introduce a wavelength demultiplexer operating with multimode waveguides of rectangular geometry matching ribbon fibers. This eliminates the spatial-spectral mixing at output waveguide coupling. Performance is stretched between the need to separate wavelengths and modes.

Journal of Lightwave Technology, Jul 1, 2017

Spatially integrated switching architectures have been recently investigated in an attempt to pro... more Spatially integrated switching architectures have been recently investigated in an attempt to provide switching capability for networks based on spatial division multiplexing (SDM) fibers, as well as to reduce the implementation cost. These architectures rely on the following switching paradigms, furnishing different degrees of spectral and spatial switching granularity: independent switching (Ind-Sw), which offers full spatial-spectral flexibility; joint-switching (J-Sw), which treats all spatial modes as a single entity; and fractional-joint switching (FrJ-Sw), whereby sub-groups of spatial modes are switched together as independent units. The last two paradigms are categorized as spatial group switching (SG-Sw) solutions since the spatial resources (modes, cores, or single-mode fibers) are switched in groups. In this paper, we compare the performance (in terms of spectral utilization, data occupancy, and network switching infrastructure cost) of the SDM switching paradigms listed above for varying spatial and spectral switching granularities in a network planning scenario. The spatial granularity is related to the grouping of the spatial resources, whereas the spectral granularity depends on the channel baud rate and the spectral resolution supported by wavelength selective switches (WSS). We consider two WSS technologies for handling of the SDM switching paradigms: 1) the current WSS realization, 2) WSS technology with a factor-two resolution improvement. Bundles of single-mode fibers are assumed across all links as a near-term SDM solution. Results show that the performance of all switching paradigms converge as the size of the traffic demands increases, but finer spatial and spectral granularity can lead to significant performance improvement for small traffic demands. Additionally, we demonstrate that spectral switching granularity must be adaptable with respect to the size of the traffic in order to have a globally optimum spectrum utilization in an SDM network. Finally, we calculate the number of required WSSs and their port count for each of the switching architectures under evaluation, and estimate the switching-related cost of an SDM network, assuming the current WSS realization as well as the improved resolution WSS technology.

Rectangular core fiber as a platform for mode-division multiplexed optical communications (Conference Presentation)

The use of a rectangular core fiber is suggested for mode division multiplexed optical communicat... more The use of a rectangular core fiber is suggested for mode division multiplexed optical communication, and as an alternative fiber geometry having advantageous transmission and component integration attributes. The rectangular core is constrained to support single transverse modes in one direction and multiple modes in the horizontal transverse direction. The supported modes are thus polarization degenerate only (i.e., TE1x and TM1x), with well separated momenta and favorable mode profiles for device coupling and wavelength multiplexing and manipulation. A fiber prototype is experimentally characterized for its modal delays and field profiles by time-gated interferogram analysis.