Analysis of InGaAsP-InP Double Microring Resonator using Signal Flow Graph Method

author

  • mahdi bahadoran Department of Physics, Shiraz University of Technology 31371555, Shiraz, Fars, Iran.
Abstract:

The buried hetero-structure (BH) InGaAsP-InP waveguide is used for asystem of double microring resonators (DMR). The light transmission and location ofresonant peaks are determined for six different sets of ring radii with different ordermode numbers. The effect of changing middle coupling coefficient on the box likeresponse is studied. It is found that the surge of coupling coefficient to the lower valuesmakes the through port resonance peaks sharper and for a larger amount of middlecoupling values, the transmission decreases according to the order mode numbers. TheDMR design with a small middle coupling and close values for rings perimeters cangenerate practical pass bandwidth of the resonant transmission peak. Moreover, anymodification in resonant mode numbers and middle coupling coefficient can change thewidth and height of the box like response. A DMR simulated results with the freespectral range (FSR) of 10.2 nm is validated by comparing with the experimental data.Achieved results are practical in the filtering process of optical communication.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Active coupled-resonator optical waveguides. II. Current injection InP–InGaAsP Fabry–Perot resonator arrays

We investigate active, electrically pumped coupled-resonator optical waveguides (CROWs) in the form of InP–InGaAsP Fabry–Perot resonator arrays. We discuss the fabrication of these devices and present measurements of the transmission spectra. The signal-to-noise ratio is found to be a strong function of wavelength and degraded rapidly along the resonator chain away from the input. Our results h...

full text

Biosensing Using Microring Resonator Interferograms

Optical low-coherence interferometry (OLCI) takes advantage of the variation in refractive index in silicon-wire microring resonator (MRR) effective lengths to perform glucose biosensing using MRR interferograms. The MRR quality factor (Q), proportional to the effective length, could be improved using the silicon-wire propagation loss and coupling ratio from the MRR coupler. Our study showed th...

full text

Double-Active-Layer Index-Guided InGaAsP-InP Laser Diode

A buried crescent InGaAsP-InP laser with two active layers was fabricated to study the temperature behavior of the doublecarrier-confinement structure. An anomalously high-characteristic temperature To was measured and an optical switching behavior was observed. A model analysis and numerical calculation using a rate equation approach explained qualitatively very well the experimental results. ...

full text

Epitaxial InGaAsP/InP photodiode for registration of InP scintillation

Operation of semiconductor scintillators requires optically tight integration of the photoreceiver system on the surface of the scintillator slab. We have implemented an efficient and fast quaternary InGaAsP pin photodiode, epitaxially grown on the surface of an InP scintillator wafer and sensitive to InP luminescence. The diode is characterized by an extremely low room-temperature dark current...

full text

Dynamics of microring resonator modulators.

A dynamic model for the transmission of a microring modulator based on changes in the refractive index, loss, or waveguide-ring coupling strength is derived to investigate the limitations to the intensity modulation bandwidth. Modulation bandwidths approaching the free spectral range frequency are possible if the waveguide-ring coupling strength is varied, rather than the refractive index or lo...

full text

All-Optical Switching in InGaAsP–InP Photonic Crystal Resonator Coupled With Microfiber

We demonstrated high-efficiency all-optical switching in an InGaAsP–InP photonic crystal resonator evanescently coupled with a microfiber. The nonlinearity was based on carrier injection by single-photon absorption of 980-nm pump light. Carrier-induced and thermally induced shifts of resonance wavelengths were observed under continuous-wave pumping. In pulse operation, an instantaneous refracti...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 3  issue 1

pages  41- 52

publication date 2018-06-01

By following a journal you will be notified via email when a new issue of this journal is published.

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023