[1] [1] KUROSU T, TANIZAWA K, NAMIKI S, et al. Dynamic optical path switching in 172Gb/s OTDM transmissions of UltraHigh definition video signals using fast channelidentifiable clock recovery and Integratable［J］.Journal of Lightwave Technology, 2013, 31(4): 594-601.

[2] [2] CHOU Hsufeng, HU Zhaoyang, BOWERS J E, et al. Simultaneous 160Gb/s demultiplexing and clock recovery by utilizing microwave harmonic frequencies in a travelingwave electroabsorption modulator［J］. Photonics Technology Letters, IEEE, 2004, 16(2): 608-610.

[3] [3] LIU Lei, XIAO Jiangnan, TANG Jin, et al. Experimental research on timing recovery of a differential quadrature phase shift keying coherent optical transmission system based on an improved gardner algorithm［J］. Acta Photonica Sinica, 2013, 33(4): 15-21.

[4] [4] HANSEN MULVAD H C, TANGDIONGGA E, WAARDT H DE, et al. 40 GHz clock recovery from 640Gbit/s OTDM signal using SOAbased phase comparator［J］. Electronics Letters, 2008, 44(2): 146-148.

[5] [5] YAMAMOTO T, OXENL WE L K, SCHMIDT C, et al. Clock recovery from 160 Gbit/s data signals using phaselocked loop with interferometric optical switch based on semiconductor optical amplifier［J］. Electronics Letters, 2001, 37(8): 509-510.

[6] [6] OXENLWE L K, GóMEZAGIS F, WARE C, et al. 640Gbit/s data transmission and clock recovery using an ultrafast periodically poled lithium niobate device［J］. Journal of Lightwave Technology, 2009, 27(3): 205-213.

[7] [7] TONG D T K, DENG K, MIKKELSEN B, et al. 160 Gbit/s clock recovery using electroabsorption modulatorbased phaselocked loop［J］. Electronics Letters, 2000, 36(23): 1951-1952.

[8] [8] AWAD E S, CHO P S, MOULTON N, et al. Subharmonic optical clock recovery from 160 Gb/s using timedependent loss saturation inside a single electroabsorption modulator［J］. Photonics Technology Letters, 2003, 15(12): 1764-1766.

[9] [9] BOERNER C, SCHUBERT C, SCHMIDT C, et al. 160 Gbit/s clock recovery with electrooptical PLL using bidirectionally operated electroabsorption modulator as phase comparator［J］. Electronics Letters, 2003, 39(14): 1071-1073.

[10] [10] DONG Hao, SUN Hongzhi, ZHU Guanghao, et al. Clock recovery using cascaded LiNbO3 modulator［J］. Optics Express, 2004, 12(20): 4751-4757.

[11] [11] GARCíA LARRODé M, KOONEN A M J, VEGAS OLMOS J J, et al. Microwave signal generation and transmission based on optical frequency multiplication with a polarization interferometer［J］. Journal of Lightwave Technology, 2007, 25(6): 1372-1378.

[12] [12] ZHANG Shangjian, GOMEZAGIS F, LIU Yong, et al. Fast synchronization and low timing jitter selfclocking concept for 160 Gb/s OTDM transmissions［J］. Optics Letters, 2010, 35(1):37-39.

[13] [13] GOMEZAGIS F, CALABRATTA N, ALBORESMEJIA A, et al. Clockdistribution with instantaneous synchronization for 160 Gbit/s optical timedomain multiplexed systems packet transmission［J］. Optics Letters, 2010, 35(19): 3255-3257.