Carbon nanotube mode lockers with enhanced nonlinearity via evanescent field interaction in D-shaped fibers

Song, Yong‐Won; Yamashita, Shinji; Goh, C.S.; Set, Sze Yun

doi:10.1364/ol.32.000148

Cited by 237 publications

(113 citation statements)

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“…They are also cheap and easy to make. A number of groups have been working on SWNT fiber lasers [1][2][3][4][5][6][7][8][9][10][11]. However, one of the problems with SWNT devices is optical damage, making it difficult to realize high-power fiber lasers using SWNT devices.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a Dispersion-Managed Passively Mode-Locked Er-Doped Fiber Laser Using Single Wall Carbon Nanotubes

et al. 2015

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Abstract:We investigated the dynamics of a dispersion-managed, passively mode-locked, ultrashort-pulse, Er-doped fiber laser using a single-wall carbon nanotube (SWNT) device. A numerical model was constructed for analysis of the SWNT fiber laser. The initial process of passive mode-locking, the characteristics of the output pulse, and the dynamics inside the cavity were investigated numerically for soliton, dissipative-soliton, and stretched-pulse mode-locking conditions. The dependencies on the total dispersion and recovery time of the SWNTs were also examined. Numerical results showed similar behavior to experimental results.

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Section: Introductionmentioning

confidence: 99%

Dynamics of a Dispersion-Managed Passively Mode-Locked Er-Doped Fiber Laser Using Single Wall Carbon Nanotubes

et al. 2015

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“…Considering these factors, the simplest approach to enhance the nonlinearity of the device is to increase the interaction length between the nonlinear optical media (CNT) and the optical field. Several reports have demonstrated enhanced nonlinear interactions by applying the CNTs to a D-shape [15][16][17] or tapered fibers [11,18] and more recently by filling a hollow optical fiber with a dispersion of CNT [12]. The above approaches all exploit the evanescent field interaction between the optical field and the CNTs hence only the tail of the evanescent field (a small fraction of the optical power) directly interacts with the CNT, thus increasing the damaged threshold and allowing high power lasing.…”

Section: Introductionmentioning

confidence: 99%

Passive mode-locked lasing by injecting a carbon nanotube-solution in the core of an optical fiber

Martínez¹,

Zhou²,

Bennion³

et al. 2010

Opt. Express

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Abstract:In this paper, we propose a saturable absorber (SA) device consisting on an in-fiber micro-slot inscribed by femtosecond laser micro fabrication, filled by a dispersion of Carbon Nanotubes (CNT). Due to the flexibility of the fabrication method, efficient and simple integration of the mode-locking device directly into the optical fiber is achieved. Furthermore, the fabrication process offers a high level of control over the dimensions and location of the micro-slots. We apply this fabrication flexibility to extend the interaction length between the CNT and the propagating optical field along the optical fiber, hence enhancing the nonlinearity of the device. Furthermore, the method allows the fabrication of devices that operate by either a direct field interaction (when the central peak of the propagating optical mode passes through the nonlinear media) or an evanescent field interaction (only a fraction of the optical mode interacts with the CNT). In this paper, several devices with different interaction lengths and interaction regimes are investigated. Self-starting passively modelocked laser operation with an enhanced nonlinear interaction is observed using CNT-based SAs in both interaction regimes. This method constitutes a simple and suitable approach to integrate the CNT into the optical system as well as enhancing the optical nonlinearity of CNT-based photonic devices.

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“…A classic explanation of the principles of active mode-locking can be found in [49]. Amplitude modulation (AM) [50] and frequency modulation (FM) [51] active modelocking are generally distinguished.…”

Section: Mode-locked Fiber Lasersmentioning

confidence: 99%

“…Therefore, passive mode-locking permits a reduction of the laser complexity, since there is no need for electronic synthesizers and optoelectronics modulators. Since the early works in 1991 [49,54], traditionally two passive mode-locking techniques have been developed. We can distinguish (1) passive mode-locking with an all-optical switch based on the Kerr nonlinearity of the optical fiber, and (2) passive mode-locking with a saturable absorber.…”

Section: Mode-locked Fiber Lasersmentioning

confidence: 99%

“…CNT-based absorbers can be fabricated to operate both in transmission or reflection, which allows the use of either ring or linear cavity configuration [31]. Integration of nanotubes in optical cavities has been approached with different techniques, such as free-space [31,46], fiber-end [47], waveguide [48], and fiber structures [49][50][51].…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 99%

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Continuous Wave and Pulsed Erbium-Doped Fiber Lasers for Microwave Photonics Applications

Ibañez¹,

Eduardo²

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AgradecimientosLa realización de una tesis doctoral no es un trabajo de carácter individual, sino el fruto de numerosas colaboraciones con compañeros y colegas que hacen posible obtener resultados de calidad, y esta tesis no es una excepción. Sin la ayuda de estas personas, no sólo en elámbito profesional sino en el emocional, habría sido imposible completar este trabajo de tesis. En esta parte del documento me gustaría transmitir mi agradecimiento a todos ellos.En primer lugar quiero mostrar mi más profundo agradecimiento a mis directores de tesis. Gracias a Javier Martí por ofrecerme la oportunidad de formar parte del Centro de Tecnología Nanofotónica, donde he podido desarrollar una excelente carrera investigadora durante losúltimos cinco años. Siempre ha mostrado un apoyo y confianza constante en mi labor que nunca olvidaré. Gracias a Pere Pérez por tomar la codirección de mi tesis en una etapa delicada de la misma. Toda la dedicación, consejos y confianza que ha depositado en mí han sido inestimables para sacar adelante esta tesis doctoral. Pero más allá del trabajo de investigación realizado está la amistad que se ha forjado durante estos años. Espero que nuestras colaboraciones se extiendan muchos años más en el futuro.Durante los años transcurridos en el Centro de Tecnología Nanofotónica he tenido la suerte de entablar amistad con fantásticos compañeros de trabajo. Necesariamente mi lista de agradecimientos la encabeza José Vicente Galán. Gracias a su consejo me incorporé a este instituto, y constantemente me ha echado una mano cuando lo he necesitado. Cómo no agradecer la compañía de Jesús Palací y Jordi Peiró, que han inundado de almuerzacos, desafíos y carcajadas el día a día de trabajo. Agradezco sobremanera los buenos ratos pasados con los "metas" Carlos García, Rubén Ortuño y Pak. En todo momento he contado con el apoyo de mis compañeros deárea María Morant, Marta Beltrán, Ruth Vilar, Joaquín Matres y Sara Mas. Gracias también a Josema Escalante, Javier García, Mercé Llopis, Antoine Brimont, Ana Gutierrez, Mariam Aamer, Clara Calvo, Susana Pérez, Carlos García y Caterina Calatayud por su compañerismo y amistad. También agradezco la ayuda recibida por parte de Jaime García, Borja Vidal, Teresa Mengual y Javier Herrera. Y a todos aquellos que ya no forman parte del instituto y que también me han brindado su apoyo y amistad: Claudio Otón, Veronica Toccafondo, Ingrid Niño, Rubén Alemany, Rakesh Sambaraju, José Caraquitena, Ignacio Solanes, Vicente Herrero, Vicent Gavino, Valentín Polo, y un largo etcétera.Además, la realización de esta tesis ha servido para formar fructíferas colaboraciones con otros grupos investigadores. En este aspecto quería agradecer a Miguel Andrés y José Luis Cruz de la Universidad de Valencia por toda su ayuda, consejo y predisposición a la hora de realizar redes de difracción en fibra. A Paolo Ghelfi, Claudio Porzi y Giovanni Serafino por acogernos a Jesús y a mí en Scuola Superiore Sant'Anna, en Pisa. A Jaques Albert por darme la oportunidad de incorporarme a su grupo en la C...

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Carbon nanotube mode lockers with enhanced nonlinearity via evanescent field interaction in D-shaped fibers

Cited by 237 publications

References 12 publications

Dynamics of a Dispersion-Managed Passively Mode-Locked Er-Doped Fiber Laser Using Single Wall Carbon Nanotubes

Dynamics of a Dispersion-Managed Passively Mode-Locked Er-Doped Fiber Laser Using Single Wall Carbon Nanotubes

Passive mode-locked lasing by injecting a carbon nanotube-solution in the core of an optical fiber

Continuous Wave and Pulsed Erbium-Doped Fiber Lasers for Microwave Photonics Applications

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