共查询到20条相似文献,搜索用时 0 毫秒
1.
Kun-Youl Park Chang-Hee Lee 《Quantum Electronics, IEEE Journal of》2008,44(3):209-215
We derived analytic expression for the relative intensity noise (RIN) of a wavelength-locked Fabry-Perot laser diode (FP LD) in a single mode region. The RIN of the wavelength-locked output is a function of the photon density and the photon life time. It also depends on the wavelength detuning and the injected amplified spontaneous emission (ASE) power. We investigated the modulation transfer function of the wavelength-locked FP LD and its dependence on wavelength detuning. The analytic result has good agreement with the simulation result. 相似文献
2.
We propose a low-cost solution for the intensity noise suppression in the spectrum-sliced Fabry-Perot laser diode (F-P LD), which is achieved by placing an F-P LD at the receiver region. The F-P LD at the receiver region provides the intensity noise suppression of about 10 dB as well as the increase of the received optical power for the spectrum-sliced optical signal. The Q-factor is improved about 5.9 at a data rate of 1.25 Gb/s. As a result, we successfully demonstrate 10-km error-free transmission at 1.25-Gb/s signal with a transmission penalty of less than 0.5 dB. It is also found that the low spectrum-sliced power of -22 dBm achieves the relative intensity noise level of -112.5 dB/Hz, which is almost independent of the operation current. 相似文献
3.
We demonstrate 1.25-Gb/s operation at 50-GHz channel spacing and 10-km single-mode fiber, which is based on a wavelength-locked Fabry-Perot laser diode (F-P LD) and an intensity noise suppression by a gain saturation of F-P LD in front of the receiver. The wavelength-locked F-P LD employs the spectrum-sliced incoherent light with narrow bandwidth of 35 GHz. The intensity noise of wavelength-locked F-P LD is suppressed about 6 dB by the F-P LD in the front of the receiver. As a result, the bit-error-rate curves exhibit the error-free performances over the detuning conditions to cover a whole mode spacing period of F-P LD. 相似文献
4.
《Quantum Electronics, IEEE Journal of》2009,45(7):864-872
5.
《Lightwave Technology, Journal of》2009,27(19):4360-4365
6.
《Quantum Electronics, IEEE Journal of》2009,45(8):940-953
7.
Jong Sool Jeong Hak-Kyu Lee Chang-Hee Lee 《Photonics Technology Letters, IEEE》2008,20(14):1225-1227
We propose a simple and useful method to measure the facet reflectivity in a Fabry-Perot laser diode (LD). The new measurement method does not require information on LD parameters such as threshold current or optical spectrum. The measurement is based on a simple formula that describes the relationship of facet reflectivity and reflection gain with launching the probe beam of a narrow spectral width. 相似文献
8.
Yan Sun Ganhua Feng George Georgiou Edip Niver Karen Noe Ken Chin 《Microelectronics Journal》2008,39(5):711-716
This research established the design guidelines for center embossed diaphragms for micro-diaphragm fiber type sensors. Following the guidelines, a center embossed diaphragm fiber optic sensor (CE-DFOS) based on Fabry–Perot interference was designed and fabricated with micro-electro-mechanical system (MEMS) technology. The CE-DFOS was experimentally verified to have the designed intrinsic frequency, and demonstrated high sensitivity in parallel testing with a piezoelectric (PZT) sensor. 相似文献
9.
Chul Han Kim Kwanil Lee Sang Bae Lee 《Photonics Technology Letters, IEEE》2009,21(9):596-598
We investigated the impact of in-band crosstalk on the system's performance in wavelength-locked Fabry-Perot laser-diode (FP-LD)-based wavelength-division-multiplexed passive optical networks (WDM PONs). As expected, wavelength-locked FP-LD, which was injected by using an incoherent broadband light source, was more tolerant to in-band crosstalk than distributed-feedback (DFB) laser diode. A 1-dB power penalty in the wavelength-locked FP-LD-based PON system was observed when the crosstalk-to-signal ratio was ~-9 dB. We also compared the measured power penalties with the calculated power penalties. It has been shown that the in-band crosstalk-induced power penalty in wavelength-locked FP-LD-based WDM PON could be estimated properly by taking into account both effects of power addition and signal-crosstalk beat noise. 相似文献
10.
Ki-Hong Yoon Jae-Won Song Hyun Deok Kim 《Photonics Technology Letters, IEEE》2007,19(14):1036-1038
A simultaneous measurement technique of the dispersion parameter and the length of an optical fiber has been demonstrated by using the self-seeding laser oscillation of a Fabry-Perot laser diode. We measured the dispersion parameter and the length of an optical fiber from the modulation frequency changes required to induce single-mode laser oscillations through an optical closed-loop path. The dispersion and fiber length measurements were within 1.5% and 0.2%, respectively, of the values measured by commercial instruments. 相似文献
11.
Vu K.T. Malinowski A. Roelens M.A.F. Richardson D.J. 《Quantum Electronics, IEEE Journal of》2008,44(7):645-651
We investigate and compare the performance of a gain-switched picosecond Fabry-Perot laser diode operated at 1.06 mum under both injection- and self-seeded conditions. Our experiments show that comparable performance can be obtained for both modes of operation, with the self-seeding arrangement offering overall benefits in terms of reduced system complexity and cost, providing the associated quantization of available pulse repetition rate can be tolerated. 相似文献
12.
Ning Hua Zhu Wei Li Ji Mim Wen Wei Han Wei Chen Liang Xie 《Quantum Electronics, IEEE Journal of》2008,44(6):528-535
Variations in optical spectrum and modulation bandwidth of a modulated Fabry-Perot (FP) semiconductor laser subject to the external light injection from another FP Laser is investigated in this paper. Optimal wavelength matching conditions for two FP lasers are discussed. A series of experiments show that two FP lasers should have a central wavelength overlapping and a mode spacing difference of several gigahertz. Under these conditions both the magnitude and phase frequency responses can be improved significantly. 相似文献
13.
In this investigation, we propose and demonstrate a simple and cost-effective erbium-doped fiber (EDF) ring laser using a Fabry–Perot etalon inside a linear cavity and employing the accurate fiber cavity length to satisfy the least common multiple number for generating multiwavelength in C-band at room temperature. Furthermore, the center wavelength of the lasing wavelength bands can be adjusted to 1541.02, 1551.32, and 1562.03 nm, respectively. The wavelength separation in each wavelength band is 0.34 nm. Moreover, the output stability of the multiwavelength laser has also been discussed and analyzed. 相似文献
14.
《Photonics Technology Letters, IEEE》2009,21(3):125-127
15.
《Photonics Technology Letters, IEEE》2009,21(14):984-986
16.
17.
Sil-Gu Mun Jung-Hyung Moon Ki-Man Choi Jin-Serk Baik Chang-Hee Lee 《Photonics Technology Letters, IEEE》2007,19(21):1729-1731
We propose and demonstrate a wavelength-division-multiplexed passive optical network by employing double-contact Fabry-Perot laser diodes (F-P LDs) without a seed light injection. To avoid the high mode partition noise at low frequency, we use a binary phase-shift keying as a modulation format at a low relative intensity noise window. An error-free transmission is achieved by compensating a lasing envelope shift due to temperature variation with the double-contact F-P LD. 相似文献
18.
《Photonics Technology Letters, IEEE》2008,20(19):1606-1608
19.
We demonstrated a high-power single-longitudinal-mode (SLM) all-fiber laser. In the cavity, a fiber Bragg grating is used to select the appropriate wavelength at 1565 nm, and a fiber ring is incorporated to act as a Fabry-Perot resonator, which greatly reduces the longitudinal-mode density. Meanwhile, an unpumped erbium-doped fiber serves as a saturable absorber to ensure the SLM operation. Finally, a high-power SLM fiber laser producing as high as 867-mW output power has been experimentally demonstrated. 相似文献
20.
Duk‐Jun Kim Young‐Tak Han Yoon‐Jung Park Sang‐Ho Park Jang‐Uk Shin Hee‐Kyung Sung 《ETRI Journal》2005,27(3):337-340
A spot‐size converted Fabry‐Perot laser diode (LD) was flip‐chip bonded to a silica‐terraced planar lightwave circuit (PLC) platform to examine the effect of the silica terrace on the heat dissipation of the LD module. From the measurement of the light‐current characteristics, it was discovered that the silica terrace itself is not a strong thermal barrier, but the encapsulation of the integrated LD with an index‐matching polymer resin more or less deteriorates the heat dissipation. 相似文献