Tunable polymer optical add/drop filter for multiwavelength networks

Kostrzewa, C.; Moosburger, R.; Fischbeck, G.; Schüppert, B.; Petermann, K.

doi:10.1109/68.634717

Cited by 36 publications

(17 citation statements)

References 10 publications

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“…To accommodate more numbers of channels in add/drop multiplexing, it was reported earlier [1][2][3][4][5][6] about Y symmetry cascaded Mach-Zehnder filter because of low pass bandwidth. These add/drop multiplexers based on CMZ filters are demonstrated by different authors using silica-on-silicon technology [1,2,15] and polymeric material [3,4].…”

Section: Tunable Add/drop Multiplexers 25mentioning

confidence: 99%

“…One of the key devices of these nodes is configurable add/drop multiplexer, which adds/drops one or more wavelengths by tuning. The add/drop multiplexing function can be achieved by a number of approaches: 2 2 Cascaded Mach Zehnder (CMZ) interferometer type filter [1][2][3][4][5], Bragg grating assisted reflected filter [7,8], Meander coupler type filter [9], etc. Out of these add/drop multiplexers, 2 2 CMZ filters are particularly interesting because of their simplicity of configuration and ease of fabrication.…”

Section: Introductionmentioning

confidence: 99%

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Tunable Optical Add/Drop Multiplexers Using Cascaded Mach Zehnder Coupler

Sahu

2007

Fiber and Integrated Optics

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A tunable add/drop filter based on Cascaded Mach Zehnder (CMZ) coupler using SiO 2 /silicon oxinitride (SiON) is presented with its mathematical model. The increase of filtered width (i.e., free spectral response) and lowering of crosstalk for this filter are optimized using its mathematical model with truncated binomial coupler distribution. The number of wavelength channels with 100 GHz (0.8 nm) channel spacing for 5-stage (M D 9, r D 2) truncated binomial CMZ filter with index contrast 5% at 20 dB crosstalk and the bending loss of 0.1 dB per MZ section are obtained as 37 (free spectral range of 31 nm). It is seen that if during the fabrication process, waveguide core width w is increased or decreased by 0.1 m (in percentage terms ˙6.6%), the crosstalk is slightly increased by 7%. Thermal tuning for wavelength channels is achieved by thin film heater with low power thermooptic delay line structure which reduces the heating power by 1.58 times in comparison to the conventional structure.

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Section: Tunable Add/drop Multiplexers 25mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tunable Optical Add/Drop Multiplexers Using Cascaded Mach Zehnder Coupler

Sahu

2007

Fiber and Integrated Optics

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“…Side-A (top surface exposed to air medium) : modes (2,7,8,9,10,11,12,13,14) Side-A (top surface exposed to the heater) : modes (3,4,5,6) After applying heat flux qo in the heater, the temperature of every nodes will increase in which the finite difference equation of the interior nodes will follow the heal diffusion equation using equation (1) whereas the equation of the surface nodes will follow the energy balance equation 11.…”

Section: Surface Nodesmentioning

confidence: 99%

“…,,,-I,n (7) for all values of p and hence the terms T m+l .n and T m. l.. are not present in equation (6) , Top surface exposed 10 air medium…”

Section: Surrace Nodesmentioning

confidence: 99%

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Minimization of Heating Power for Thermooptic Waveguide Type Devices

Das

Sahu

2003

J Opt

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Thennal analysis ofthemlOoptic device IIsing planar optical wllvegllide structures is perjonned by using implicit finite difference method. lsothenllal profiles of the medium having the core and cladding are shown from the computation results. We have proposed two new structures where lower heatil/g power is required whel/ compared to that of the conventiol/a/ structure. A compromise between heating power and response time is made for different applica/iollS of themlOoptic devices.

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Novel optical cryptography using LIP signals generated by a PANDA ring resonator

Pongsanam

Juleang

Mitatha

et al. 2011

Micro & Optical Tech Letters

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matched case (Fig. 4) at the same fiber separation the power coupling efficency is lower.In the last study, the power variation as a function of the fiber separation in the multimode-to-multimode fiber design is investigated for the red LED and laser sources. As can be seen in Figure 6, since the launching power for the laser is considerably higher than that of the LED thus the output power for the laser is much higher. For the LED light, the power decreases from 496 to 61 nW for the gap range of 0.1-5 mm. For the laser illumination, the output power decreases from the 2036 to 110 nW for the same range. For both light sources, the related output powers are decreased by increasing the axial fiber separation. As can be noted in Figure 6, the sensitivity, in particular for the laser illumination, is higher for the range of 0.1-5-mm displacement, which can be a good range for the effective sensing operation based on the fiberto-fiber principle.

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Tunable polymer optical add/drop filter for multiwavelength networks

Cited by 36 publications

References 10 publications

Tunable Optical Add/Drop Multiplexers Using Cascaded Mach Zehnder Coupler

Tunable Optical Add/Drop Multiplexers Using Cascaded Mach Zehnder Coupler

Minimization of Heating Power for Thermooptic Waveguide Type Devices

Novel optical cryptography using LIP signals generated by a PANDA ring resonator

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