Integrated resonance-enhanced variable optical delay lines

Rasras, Mahmoud; Madsen, C.K.; Cappuzzo, M.; Chen, E.; Gomez, L.; Laskowski, E.J.; Griffin, Andrew; Wong-Foy, A.; Gasparyan, A.; Kasper, A.; Grange, J. Le; Patel, Sanjay

doi:10.1109/lpt.2005.844009

Cited by 114 publications

(77 citation statements)

References 6 publications

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“…The bandwidth of a multi-stage ORR-based delay element can be extended by adding more sections, and the peak-peak ripple of the group delay response in the flattened frequency band can be decreased by decreasing the difference between the resonance frequencies of the rings. As a result, multi-stage ORR-based delay elements show a trade-off between peak delay, optical bandwidth, relative group delay ripple and number of rings [1], [3]- [5]. Measurements on a 3-ring optical delay device realized in LPCVD waveguide technology [6] were presented in [5], showing good agreement with (1).…”

Section: B Multi-ring Delay Elementsmentioning

confidence: 95%

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Single-chip optical beam forming network in LPCVD waveguide technology based on optical ring resonators

Zhuang

Roeloffzen

Heideman

et al. 2006

2006 International Topical Meeting on Microwave Photonics

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Section: B Multi-ring Delay Elementsmentioning

confidence: 95%

“…The optical bandwidth of the delay element (the width of the bell shape) is more or less inversely proportional to the peak delay. As a result, a single-ring delay element shows a trade-off between peak delay and bandwidth [1], [3]- [5]. …”

Section: A Optical Ring Resonator (Orr) Delaysmentioning

confidence: 99%

Single-chip optical beam forming network in LPCVD waveguide technology based on optical ring resonators

Zhuang

Roeloffzen

Heideman

et al. 2006

2006 International Topical Meeting on Microwave Photonics

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“…Eight micro-ring resonators are serially cascaded without coupling between them. The time delay of the APF increases as the number of rings in resonance [8,9]. 2 shows a unit waveguide structure for the design of the polymer APF, which is a buried structure whose core width and height are 1.5 µm, respectively.…”

Section: Designmentioning

confidence: 99%

“…Artificial resonator devices [8,9] have potentials to solve the inherent problems such as the size, design flexibility, and integration possibility in the slow light modules using the resonating properties of the material itself. In the resonator slow-wave structure, a delay is realized by confining an optical wave in the resonator as far as a quality factor allows.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Delay Module Using Cascaded Polymer All-Pass-Filter Ring Resonators

Kim¹,

Ko²,

Kim³

et al. 2013

PIER Letters

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Abstract-An APF (All-Pass Filter) delay module in which eight single-ring resonators are serially cascaded is designed and fabricated. The polymer waveguide used for the realization of the APF delay module is a buried structure whose core width and height are 1.5 µm. The core and cladding index are 1.51 and 1.378, respectively, which corresponds to the relative index difference of 8%. In order to use a thermo-optic effect of polymer materials, electrodes are evaporated above the ring resonator to provide heating currents. The time delay is measured to be about 50 ps when 2 rings are in resonance, and about 105 ps and 150 ps, respectively, when 4 and 6 rings of APF are in resonance, respectively. When all of 8 rings are in resonance, the delay is measured to be about 200 ps.

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“…However, the delay-bandwidth product of a single microring is limited by 2∕π [16]. To increase the delay-bandwidth product, all-pass filters and coupled resonator optical waveguides with several cascaded microrings have been employed with compact structure and large delay [17][18][19][20][21][22]. In PhCWs, the strong optical confinement and slow light effects were used to realize true-time delay as well, which reduced the footprint and power consumption [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Tunable optical delay line based on integrated grating-assisted contradirectional couplers

Wang¹,

Zhao²,

Ding³

et al. 2018

Photon. Res.

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Tunable optical delay lines are one of the key building blocks in optical communication and microwave systems. In this work, tunable optical delay lines based on integrated grating-assisted contradirectional couplers are proposed and experimentally demonstrated. The device performance is comprehensively improved in terms of parameter optimization, apodization analysis, and electrode design. Tunable group delay lines of 50 ps at different wavelengths within the bandwidth of 12 nm are realized with a grating length of 1.8 mm. Under thermal tuning mode, the actual delay tuning range is around 20 ps at 7.2 V voltage. At last, a new scheme adopting an ultra-compact reflector for doubling group delay is proposed and verified, achieving a large group delay line of 400 ps and a large dispersion value up to 5.5 × 10 6 ps∕nm · km within bandwidth of 12 nm. Under thermal tuning mode, the actual delay tuning range is around 100 ps at 8 V voltage.

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Integrated resonance-enhanced variable optical delay lines

Cited by 114 publications

References 6 publications

Single-chip optical beam forming network in LPCVD waveguide technology based on optical ring resonators

Single-chip optical beam forming network in LPCVD waveguide technology based on optical ring resonators

All-Optical Delay Module Using Cascaded Polymer All-Pass-Filter Ring Resonators

Tunable optical delay line based on integrated grating-assisted contradirectional couplers

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