The switching operation is achieved through thermooptic effect. This makes them suitable for making digital optical switches where large refractiveindex change is required. Ultracompact and widespectrumrange thermooptic switch. Hybrid polymersilica thermooptic vertical coupler switches. A thermo optic switch using total internal reflection waveguide was fabricated for optical true time delay. International conference on advances in electrical, electronics, information, communication and bioinformatics aeeicb16 thermooptic switch. The switching operation is achieved through thermo optic effect. Chen1, 1department of electrical and computer engineering, the university of texas at austin, 10100 burnet rd, austin. Synthesis and evaluation of thermoplastic polyurethanes as. Osa compact and low power thermooptic switch using folded. The optical switch can be used to complete or break an optical path. Index termsmmi coupler, mmimzi, optical switch, polymer, thermooptic, waveguide.
Benzocyclobutene polymer in glass multimode interference thermo optic switch yaacob, maslina 2010 benzocyclobutene polymer in glass multimode interference thermo optic switch. By exploiting the small bend radius achievable using highindexcontrast silicon photonic wire waveguides, we demonstrate a new low power thermo optic switch arranged in a dense, double spiral geometry. The switch was operated by heating one arm of the mzi shown in the fig. Reconfigurable thermooptic polymer switch based true time. This provides an effective means to reduce the power. Osa compact and low power thermooptic switch using. A scheme to achieve rolltoroll fabrication of reconfigurable thermooptic polymer switch truetimedelay lines using compatible printing techniques for phased array antenna application is shown in this work.
Cascaded phaseshift thermo optic switch our switch is based on the machzehnder interferometer mzi, with adiabatic wideband 3db splitters 9. The biomate 160 spectrophotometer offers preprogrammed assay methods for nucleic acid and protein concentration as well as cell culture m. The multilayer structures were optimized by thermal analysis. Masters thesis, universiti teknologi malaysia, faculty of electrical engineering. A low power machzehnder interferometer thermooptic switch using freestanding silicononinsulator strip. Optoelectronic research group, department of electronics and electrical engineering, university of glasgow, oakfield avenue, glasgow g12 8lt, scotland 2. Photonic crystal waveguides pcws were used to replace conventional channel waveguides in the phase shifters of a machzehnder interferometer mzi. The highly confined optical modes of the strip waveguides enable miniature heated crosssections. Passive fiber optic switches will route an optical signal without electrooptical or optoelectrical conversion. Extremelylowpowerconsumption thermooptic switch with siliconsilica hybrid. If a switching command is issued, one of the wave guard arms is heated and the light within the wave guard will change its optical path length.
Thermooptic characterization of silicon nitride resonators for cryogenic photonic circuits ali w. Based on these designs and simulations, hybrid polymersilica thermooptic 1. With the increase of temperature, the wax expands inside the thermo element, causing the displacement of the stainless steel pin, compressing the spring and opening the valve, which allows the passage of the liquid to the radiator. A low power machzehnder interferometer thermo optic switch using freestanding silicononinsulator strip waveguides is demonstrated. Benzocyclobutene polymer in glass multimode interference.
Optical mode switch based on multimode interference couplers. E cient, compact and low loss thermooptic phase shifter in. The measured onchip loss on the transmission band is as low as 1db. In the bottom layer, two series of waveguides intersect each other at an angle of around. Polymer is the most attractive material to fabricate thermo optic switches for its high thermo optic coecient. Photonic crystal thermo optic switch tao chu1, hirohito yamada1, 2, satomi ishida3, and yasuhiko arakawa3 1optoelectronic industry and technology development association oitda 2nec corporation, fundamental and environmental research laboratories 34, miyukigaoka, tsukuba, ibaraki 3058501, japan phone. Twodimensional design and analysis of trenchcoupler based silicon machzehnder thermo optic switch opt. Pushpull thermooptic switch lucent technologies inc. The thermooptic effect of the uvcured acrylic polymers was examined. Thermooptic characterization of silicon nitride resonators. Thermooptic switching archives fiber cabling solution.
The acrylic monomer 6 was designed to have urethane bonds under the expectation of a large thermo optic effect. Thermo optic waveguide switches have the advantages of relying on guided lightwaves no free space optics and not having moving parts. The optic switch is one of the most indispensable devices used in optical network systems, particularly in future photonic network systems, where the development of compact, crossconnect, optic switches is urgently required. The main focus of this work is to analysis of thermo optical. Pdf the described work is study and design of multimode interference based thermooptic switch using silicon on insulator soi technology. Extremelylowpowerconsumption thermooptic switch with silicon.
Jons,1,2 and val zwiller2 1kavli institute of nanoscience, delft university of technology, 2628 cj delft, the netherlands. The main focus of this work is to analysis of thermo optical switches. Low loss and high extinction ratio strictly non blocking 16. The mz waveguide was drawn by symmetrically coupling two y junctions with a core width of 8.
With the increase of temperature, the wax expands inside the thermoelement, causing the displacement of the stainless steel pin, compressing the spring and opening the valve, which allows the passage of the liquid to the radiator. At 500 nm after 1 hour warmup switch consists of two cascaded waveguide couplers with thermo optic heaters on both waveguide arms connecting the two couplers. Dec 02, 2003 a thermo optic interferometer switch is arranged to operate in a pushpull mode by placing approximately a quarterwavelength effective pathlength difference 90 degree bias between the arms of an interferometer switch in the zerodrive state, and then driving one arm to activate the switch to one state e. Polymer is the most attractive material to fabricate thermooptic switches for its high thermooptic coecient. Photosensitive benzocyclobutene bcb 402440 polymer based coupler material was chosen due to its high thermooptic coefficient, which offers. Mar 12, 2014 the thermo optic effect of the uvcured acrylic polymers was examined.
We demonstrated a pmmabased thermooptic switch consisting of a machzehnder mz type waveguide drawn by proton beam writing pbw and working at. Thermooptic switch how is thermooptic switch abbreviated. Printable thermooptic polymer switches utilizing imprinting. Thermo optic switch will send light down a wave guard. They are robust, enjoy longterm stability and their. A schematic layout of the 2x2 mzi switch is shown in fig. The described work is study and design of multimode interference based thermo optic switch using silicon on insulator soi technology.
Compact sibased asymmetric mzi waveguide on soi as a thermo. Printable thermo optic polymer switches utilizing imprinting and inkjet printing xiaohui lin,1,4 tao ling,2,4 harish subbaraman,3 l. This provides an effective means to reduce the power consumption of thermooptic switches, as well as a compact geometry desirable for the development of switch arrays. The main focus of this work is to analysis of thermooptical. Koyama, thermo optic effect in linbo3 for light deflection and switching, electron. The air gap provides thermal isolation between the waveguide interferometer arms and the underlying silicon substrate. The optomechanical switch may be regarded as the oldest type of optical switches. Osa submilliwatt thermooptic switches using freestanding silicon. Then the light is recombined and the path lengths of the lights are measured. Highperformance grapheneintegrated thermooptic switch. Pdf polymerbased thermooptic switch for optical true time. Such a design permits the waveguide length to be extended for increased phase shift, without the need for increased heated volume.
This thesis is significantly devoted towards the design and simulation work of optical switch based on 2. Advanced optical components optical switch fiber optic. In the experiments, an extinction ratio about 25 db at the wavelength of 1590 nm is obtained. Bpm method, the result showed that the power consumption of the thermo. The light is then split into different wave guards. And today, we will mainly introduce the first two types.
The study on reliability of multilayer structure of thermo optic switch under thermal mechanical coupling effect is the basic research subject in modern microoptoelectronics. Wideband siliconphotonic thermooptic switch in a wavelength. Optical switches may separate signals at different wavelengths and direct them to different ports. The described work is study and design of multimode interference based thermooptic switch using silicon on insulator soi technology. Wavelength tuning and switching of a thermooptic microring. Experimental result shows that the crosstalk in the bar state is as low as 42db and the total insertion loss is only 4db at the wavelength. Thermooptic effect can be expressed by the empirical formula below 15. Jan 22, 2015 optical switch or fiber optic switch can be a mechanical, optomechanical, or electronic device that opens or closes an optical circuit. The coupling coefficient for directional couplers is difficult to calculate accurately, because it is affected by the coupling between the bent. Demonstration of thermooptic switch consisting of mach. Osa submilliwatt thermooptic switches using freestanding. This device was fabricated on silicononinsulator soi platform. Therefore, we studied photoniccrystal phc slabbased thermo optic switches, whose size could be drastically re. Oct 29, 2014 in addition, thermo optic switch, electro optic switch and acousto optic optical switch are also used in some specific applications.
The acrylic monomer 6 was designed to have urethane bonds under the. Perform quantitative measurements in life science laboratories with the automated and networkcapable thermo scientific biomate 160 uvvisible spectrophotometer. Twodimensional design and analysis of trenchcoupler based silicon machzehnder thermooptic switch opt. The waveguide can be easily fabricated by direct ultraviolet photolithography and wet etching processes. Effects of device structure on thermooptic switch and design. Power consumption and response time are the most important performance indexes.