Planar waveguide microlenses for nonblocking photonic switches and optical interconnects

Glebov, Alexei L.; Huang, Lixi; Lee, Michael G.; Aoki, Shigeki; Yokouchi, Kishio

doi:10.1117/12.545180

Cited by 4 publications

(3 citation statements)

References 15 publications

(20 reference statements)

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“…The double lens gaps are filled with Cytop from Asahi Glass Company. An extensive study of the single and double lens properties has been reported previously [10]. The studies demonstrated that the planar waveguide microlenses collimated under specifically designed conditions the light beams with widths less than 400-500 m that can propagate in slab waveguides up to 10 cm without increase of the beam width.…”

Section: Th International Ceramics Congressmentioning

confidence: 96%

“…In addition, the polymer gap filling decreases the vertical light divergence in the gaps. Several optical materials, including silica and a number of polymers, have been tested for the microlens applications [11]. Microlenses fabricated in silica-on-silicon technology demonstrate the best results for the single mode applications at 1550 nm wavelength ( ).…”

Section: Th International Ceramics Congressmentioning

confidence: 99%

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Fast Photonic Switches with Ferroelectric Films

Glebov

Lee

Yokouchi

2006

Advances in Science and Technology

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Fir st prototypes of electrooptic (EO) planar deflector switches (PDS) are fabricated with hybrid integration on Si substrates. Planar optical modules, made in silica-on-silicon technology, consist of input and output waveguide microlenses facing each other and slab waveguides in between. The modules interconnect the input and output fibers with laterally collimated light beams less than 400 m in width at distances up to 100 mm with losses lower than 3 dB. Thin lead lanthanum zirconium titanate (PLZT) films with prism-shaped electrodes grown on SrTiO3 substrates form the deflector elements. The PLZT films are more than 10 m thick with EO coefficients about 40 pm/V. The deflector assembly technology provides chip vertical positioning accuracy better than 1 m. The deflector chips are attached to the optical substrates with thermocompression flip-chip bonding. The optical power losses of the modules with test silica chips can be as low as 3.6 dB. However, the lowest module losses achieved with PLZT are about 10 dB. The channel-to-channel switching operations are demonstrated at about 40 V and switching times less than 300 ns.

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Section: Th International Ceramics Congressmentioning

confidence: 96%

Section: Th International Ceramics Congressmentioning

confidence: 99%

Fast Photonic Switches with Ferroelectric Films

Glebov

Lee

Yokouchi

2006

Advances in Science and Technology

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“…1 and 2 can easily include multi-layer structures with vertical and lateral mirrors or waveguide bends so that 3D routing can be realized [7]. Alternative non-blocking OI routing architectures can also be used instead of regular channel waveguides [8].…”

Section: Figure 1 Optical Interconnect Module With Optical Jumpersmentioning

confidence: 99%

Backplane photonic interconnect modules with optical jumpers

2005

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Prototypes of optical interconnect (OI) modules for backplane applications are presented. The transceivers attached to the linecards E/O convert the signals that are passed to and from the backplane by optical jumpers terminated with MTPtype connectors. The connectors plug into adaptors attached to the backplane and the microlens arrays mounted in the adaptors couple the light between the fibers and waveguides. Planar polymer channel waveguides with 30-50 µm crosssections route the optical signals across the board with propagation losses as low as 0.05 dB/cm @ 850 nm. The 45º-tapered integrated micromirrors reflect the light in and out of the waveguide plane with the loss of 0.8 dB per mirror. The connector displacement measurements indicate that the adaptor lateral assembly accuracy can be at least ±10 µm for the excess loss not exceeding 1 dB. Insertion losses of the test modules with integrated waveguides, 45º mirrors, and pluggable optical jumper connectors are about 5 dB. Eye diagrams at 10.7 Gb/s have typical width and height of 70 ps and 400 mV, respectively, and jitter of about 20 ps.

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