Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator
Abstract An optical phase‐sensitive amplifier (PSA) has the potential of low‐noise optical amplification. A frequency non‐degenerate PSA (ND‐PSA) can amplify arbitrary modulation formats including higher‐order QAM. The ND‐PSA requires a co‐propagating phase conjugated light (idler light) that has be...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12002 |
| _version_ | 1818031650008727552 |
|---|---|
| author | S. Shimizu T. Kobayashi T. Kazama T. Umeki K. Enbutsu R. Kasahara Y. Miyamoto |
| author_facet | S. Shimizu T. Kobayashi T. Kazama T. Umeki K. Enbutsu R. Kasahara Y. Miyamoto |
| author_sort | S. Shimizu |
| collection | DOAJ |
| description | Abstract An optical phase‐sensitive amplifier (PSA) has the potential of low‐noise optical amplification. A frequency non‐degenerate PSA (ND‐PSA) can amplify arbitrary modulation formats including higher‐order QAM. The ND‐PSA requires a co‐propagating phase conjugated light (idler light) that has been conventionally created with an optical phase conjugator at the transmitter side. We propose a transmitter configuration using simultaneous signal generation of both a signal and its idler by double‐sideband modulation for transmission systems with ND‐PSAs. The proposed scheme provides a simple configuration with a single Mach–Zehnder amplitude modulator without optically creating the idler light. We performed experiments using 16QAM, 32QAM, and probabilistically shaped 256QAM signals. As a result, a phase‐sensitive amplification with each modulation format was successfully demonstrated using the proposed transmitter configuration. |
| first_indexed | 2024-12-10T05:54:51Z |
| format | Article |
| id | doaj.art-c60edad2434c4227b02d44dd00532a77 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-12-10T05:54:51Z |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-c60edad2434c4227b02d44dd00532a772022-12-22T01:59:57ZengWileyElectronics Letters0013-51941350-911X2021-01-01571323310.1049/ell2.12002Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulatorS. Shimizu0T. Kobayashi1T. Kazama2T. Umeki3K. Enbutsu4R. Kasahara5Y. Miyamoto6NTT Network Innovation Labs NTT Corporation Yokosuka Kanagawa JapanNTT Network Innovation Labs NTT Corporation Yokosuka Kanagawa JapanNTT Network Innovation Labs NTT Corporation Yokosuka Kanagawa JapanNTT Network Innovation Labs NTT Corporation Yokosuka Kanagawa JapanNTT Device Technology Labs NTT Corporation Atsugi Kanagawa JapanNTT Device Technology Labs NTT Corporation Atsugi Kanagawa JapanNTT Network Innovation Labs NTT Corporation Yokosuka Kanagawa JapanAbstract An optical phase‐sensitive amplifier (PSA) has the potential of low‐noise optical amplification. A frequency non‐degenerate PSA (ND‐PSA) can amplify arbitrary modulation formats including higher‐order QAM. The ND‐PSA requires a co‐propagating phase conjugated light (idler light) that has been conventionally created with an optical phase conjugator at the transmitter side. We propose a transmitter configuration using simultaneous signal generation of both a signal and its idler by double‐sideband modulation for transmission systems with ND‐PSAs. The proposed scheme provides a simple configuration with a single Mach–Zehnder amplitude modulator without optically creating the idler light. We performed experiments using 16QAM, 32QAM, and probabilistically shaped 256QAM signals. As a result, a phase‐sensitive amplification with each modulation format was successfully demonstrated using the proposed transmitter configuration.https://doi.org/10.1049/ell2.12002Fibre lasers and amplifiersOptical phase conjugationMultiwave mixingOptical beam modulatorsOptical computers, logic elements, and interconnectsAmplifiers |
| spellingShingle | S. Shimizu T. Kobayashi T. Kazama T. Umeki K. Enbutsu R. Kasahara Y. Miyamoto Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator Electronics Letters Fibre lasers and amplifiers Optical phase conjugation Multiwave mixing Optical beam modulators Optical computers, logic elements, and interconnects Amplifiers |
| title | Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator |
| title_full | Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator |
| title_fullStr | Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator |
| title_full_unstemmed | Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator |
| title_short | Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator |
| title_sort | optical phase sensitive amplification of higher order qam signal with single mach zehnder amplitude modulator |
| topic | Fibre lasers and amplifiers Optical phase conjugation Multiwave mixing Optical beam modulators Optical computers, logic elements, and interconnects Amplifiers |
| url | https://doi.org/10.1049/ell2.12002 |
| work_keys_str_mv | AT sshimizu opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT tkobayashi opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT tkazama opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT tumeki opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT kenbutsu opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT rkasahara opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator AT ymiyamoto opticalphasesensitiveamplificationofhigherorderqamsignalwithsinglemachzehnderamplitudemodulator |