Comparison of heater architectures for thermal control of silicon photonic circuits

Masood, Adil; Pantouvaki, Marianna; Lepage, Guy; Verheyen, Peter; Campenhout, Joris Van; Absil, P.; Thourhout, Dries Van; Bogaerts, Wim

doi:10.1109/group4.2013.6644437

Cited by 95 publications

(58 citation statements)

References 4 publications

(5 reference statements)

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“…4(a)] and recorded the voltage and current values necessary to obtain a πrad phase shift (half FSR in the spectrum profile). From the obtained values we report a πrad phase shift at 20.9mW, which is a result compatible with the reported values for this technology [6].…”

Section: Electrical and Optical Characterizationsupporting

confidence: 91%

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Digitally controlled multiplexed silicon photonics phase shifter using heaters with integrated diodes

Ribeiro¹,

Bogaerts²

2017

Opt. Express

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We present a silicon side heater with integrated diode to provide multiplexed control of different elements in a photonic circuit based on the polarity of the driving signal. The diode introduces an asymmetric electrical response where the heater is only active under forward bias. This can be used to address multiple heaters through the same electrical electrical contacts. We demonstrate push-pull operation on a Mach-Zehnder interferometer with heaters in both arms, as well as time-multiplexed operation of multiple heaters by modulating the driving signal. We extend this work by demonstrating how pulse width modulation (PWM) and duobinary-PWM can be used to improve the linearity of the response of the phase shifters.

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Section: Electrical and Optical Characterizationsupporting

confidence: 91%

“…The high thermo-optic coefficient of silicon (1.8 × 10 −4 K −1 ) makes devices susceptible to temperature variationsvariances [5], and allows efficient tuning of wavelength filters and spectrum shifting [6][7][8][9][10][11]. Although compact, heaters often require large contact pads to connect to external electronics for driving.…”

mentioning

confidence: 99%

Digitally controlled multiplexed silicon photonics phase shifter using heaters with integrated diodes

Ribeiro¹,

Bogaerts²

2017

Opt. Express

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“…Active tuning can be performed by incorporating a heater as demonstrated by Li et al [24] or by adding a controllable DC level to the RF drive voltage if the modulator is efficient enough and the tuning range required is sufficiently small [76]. An important consideration is the power consumption of the tuning element itself and therefore the efficiency of the different heater architectures possible [77], and methods to improve the efficiency [78], have attracted increasing research interest recently.…”

Section: Silicon Based Carrier Depletion Modulator For Short Reach Linksmentioning

confidence: 99%

Recent breakthroughs in carrier depletion based silicon optical modulators

et al. 2014

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Abstract:The majority of the most successful optical modulators in silicon demonstrated in recent years operate via the plasma dispersion effect and are more specifically based upon free carrier depletion in a silicon rib waveguide. In this work we overview the different types of free carrier depletion type optical modulators in silicon. A summary of some recent example devices for each configuration is then presented together with the performance that they have achieved. Finally an insight into some current research trends involving silicon based optical modulators is provided including integration, operation in the mid-infrared wavelength range and application in short and long haul data transmission links.

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“…The fact that these heaters are in-plane with the optical waveguides offers an advantage over also often used metal heaters that are positioned above the optical waveguide. The reason is that in the case of in-plane heaters the optical waveguide can be wrapped around the heater, which gives an efficiency improvement of at least a factor of 2 without compromising for speed [8]. Figure 1 shows a schematic representation of the phase shifter that has been implemented in the CBC design.…”

Section: Designmentioning

confidence: 99%

PLAT4M: Progressing Silicon Photonics in Europe

et al. 2015

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Photonic integration is an appealing technology for emerging applications in communications, medical diagnostics and sensing. Silicon Photonics presents a highly attractive solution for large-scale photonic integration, principally because it is based on well-established CMOS-fabrication technologies. However, Silicon photonics can be difficult and expensive to implement, as it requires complex device design, fabrication and packaging capabilities. Photonic Libraries And Technology for Manufacturing (PLAT4M) is a major European project that brings together the key capabilities required to develop solutions for a range of Silicon photonic-based applications. This paper will present an overview of the PLAT4M project. It will present, in detail, a key application demonstrator (Coherent Beam Combiner), highlighting the ability of the project team to develop an integrated Silicon Photonic sub-system, from design, through to device fabrication, packaging and final test. The paper also highlights the need to consider additional capabilities besides device fabrication, such as packaging, which are critical to achieving fully operational sub-systems.

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Comparison of heater architectures for thermal control of silicon photonic circuits

Cited by 95 publications

References 4 publications

Digitally controlled multiplexed silicon photonics phase shifter using heaters with integrated diodes

Digitally controlled multiplexed silicon photonics phase shifter using heaters with integrated diodes

Recent breakthroughs in carrier depletion based silicon optical modulators

PLAT4M: Progressing Silicon Photonics in Europe

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