UWB system optical link based on a quantum-dot-in-a-well (QDWELL) laser

Ezra, Y. Ben; Lembrikov, B. I.

doi:10.1007/s11082-015-0154-x

Cited by 2 publications

(6 citation statements)

References 7 publications

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“…UWB analogous optical link (AOL) with the optically injected QDWELL laser (see Figure 5). The constellation shown in Figure 8 is practically identical with the constellation of the input signal unlike the case without the optical injection [26]. The AOL error vector magnitude (EVM) dependence on the distance for the optical injection power of 10 À3 and 1 mW is presented in Figure 9.…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 90%

“…It is shown in Figure 9 that in the case of the strong optical injection, the AOL EVM decreases significantly due to the enhancement of the QDWELL laser modulation frequency [26].…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 97%

“…We investigated theoretically the optical synchronization of the carrier dynamics in the optically injected QDWELL laser and SOA and its influence on the QDWELL laser and SOA performance [23][24][25][26][27]. We solved numerically the LS equations (14)- (17) for the optically injected QDWELL laser [24][25][26] and Eqs.…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 99%

“…We solved numerically the LS equations (14)- (17) for the optically injected QDWELL laser [24][25][26] and Eqs. (17)- (22) for the QDWELL SOA [23,27] [17,20].…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 99%

“…The directly modulated QDWELL laser can be introduced into an analogous optical link (AOL) in the framework of ultra wideband (UWB) radio-over-fiber (UROOF) technology [26,29,30]. The UWB high-speed AOL shown in Figure 7 consists of electrical/optical (E/O) converter, a standard SMF (SSMF) optical fiber, and optical/electrical (O/E) converter [30].…”

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confidence: 99%

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Improvement of the Quantum Dot-in-a-Well (QDWELL) Laser and Amplifier Performance under the Optical Injection

Ezra¹,

Lembrikov²

2017

Optical Communication Technology

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Quantum dot (QD) laser devices can be successfully used in optical communications due to their unique properties caused by the carrier localization in three dimensions. In particular, quantum dot-in-a-well (QDWELL) lasers are characterized by an extremely low threshold current density and the high modulation frequency. However, their operation rate is limited by the strongly nonlinear electron and hole scattering rates in and out of QD. We investigated theoretically the nonlinear optical phenomena in QDWELL lasers and amplifiers under the optical injection. We have shown that the synchronization of the carrier dynamics in QD and quantum well (QW) caused by the optical injection improves the QDWELL laser performance and, in particular, enhances the relaxation oscillation (RO) frequency. As a result, the QDWELL laser performance in the analogous optical link (AOL) is significantly improving. The optical injection also improves the performance of the QDWELL-based semiconductor optical amplifiers (SOA).

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Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 90%

“…It is shown in Figure 9 that in the case of the strong optical injection, the AOL EVM decreases significantly due to the enhancement of the QDWELL laser modulation frequency [26].…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 97%

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 99%

“…We solved numerically the LS equations (14)- (17) for the optically injected QDWELL laser [24][25][26] and Eqs. (17)- (22) for the QDWELL SOA [23,27] [17,20].…”

Section: Optical Synchronization Of a Qdwell Laser Dynamics And Its Imentioning

confidence: 99%

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confidence: 99%

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