Optoelectronic Integration and Photonic Integrated Circuits

Optical Communications

This set of Optical Communications Question Bank focuses on “Optoelectronic Integration and Photonic Integrated Circuits”.

1. Monolithic integration for optical sources are confined to the use of __________ semiconductors.
a) Ⅲ-Ⅴ
b) Ⅱ-Ⅲ
c) Ⅰ-Ⅱ
d) Ⅶ-Ⅷ

2. Circuits fabricated from GaAs or AlGaAs operate in wavelength region of __________
a) 0.1 and 0.2 μm
b) 0.8 and 0.9 μm
c) 0.4 and 0.6 μm
d) 0.6 and 0.7 μm

3. The OEICs realization __________ as compared to the other developments in IO.
a) Scripted
b) Decreased
c) Lagged behind
d) Increased

4. Compositional and structural differences between photonic and electronic devices __________
a) Provide high efficiency
b) Provide low efficiency
c) Highly used
d) Create problems

5. To avoid large chip __________ devices are used.
a) InGaAsP
b) InGa
c) GaAs
d) InGaAs

6. Devices operating at transmission rates greater than 40 Gb/s are _________
a) GaAs and InP
b) GaAs
c) InGa
d) InGaAs

7. HEMT based __________ have a spot-size convertor with a photodiode.
a) p-n junction diode
b) p-i-n photoreceiver
c) IGBT
d) BJT

8. P-I-N photoreceiver based on HEMT is integrated with _________ guiding layers.
a) GaAs and InP
b) GaAs
c) InGa
d) InGaAsP

9. An optical power splitter integrated with optical waveguide amplifier is more useful.
a) True
b) False

10. The use of intelligent optical switches is necessary.
a) False
b) True

11. The wafer scale replication technology uses ____________
a) SOL gel
b) GaAs
c) InGa
d) InGaAsP

12. ___________ is useful for production of both planar micro-optical elements and stacked optical microsystems.
a) Wavelength amplifier
b) Wavelength convertor
c) Replication technology
d) Optical switching matrix

13. Optical interconnection between optoelectronic device is achieved in _________
a) Wavelength amplifier
b) Wavelength convertor
c) Replication technology
d) Chip-to-chip interconnection

14. Multilevel interconnections are incorporated in _______
a) PIC
b) AWG based coupler
c) Convertors
d) OEIC technologies

15. When there is M number of WDM channels present at N input ports, then the output port 1 produces a _________
a) CW signal
b) WDM signal
c) Amplified signal
d) Distorted signal

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