| 2 | Graphene Oxide-Based Q-Switched Erbium-Doped Fiber Laser显示文摘We demonstrate a pulsed ring erbium-doped fiber laser based on graphene oxide(GO),employing a simplified Hummer's method to synthesize the GO via chemical oxidation of graphite flakes at room temperature.By dipping a fiber ferrule end face onto the GO suspension,GO is successfully coated onto the end face,making it a simple saturable absorption device.A stable Q-switched pulsed fiber laser is achieved with a low pump threshold of 9.5 mW at 980 nm.The pulse repetition rate ranges from 16.0 to 57.0 kHz.The pulse width and the pulse energy are studied and discussed. | Y.K.Yap N.M.Huang S.W.Harun H.Ahmad | 2013 | Chinese Physics Letters2013，30，2： | 1 |
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