Abstract: Seeder for use with a fiber laser for generating an arbitrary shaped pulse, comprising an amplified spontaneous emission (ASE) source, a spectral filter and an arbitrary waveform generator (AWG) modulator, the ASE source for generating a continuous wave (CW) broadband pulse, the spectral filter being coupled with the ASE source for narrowing the CW broadband pulse, and the AWG modulator being coupled with the spectral filter for shaping the narrowed CW broadband pulse to an arbitrary pulse shape.

Abstract: Narrow line width, high power pulses of optical radiation may be generated by the combination of stimulated emission and stimulated Raman scattering within a rare earth doped optical fibre (24b). The signals of a first (11) and second (13) seed laser sources are coupled into the fiber. The radiation of the pulsed first seed laser source (11) is amplified by stimulated emission of the rare earth ions so that the threshold for stimulated Raman scattering into the mode of the second seed laser source 13 is exceeded, and efficient SRS transfers nearly all the power into the mode seeded by the second seed laser source (13).

Abstract: Mode expander isolator for a fiber laser amplifier comprising an optical fiber input, an optical fiber output, an isolator and at least one lens, the optical fiber input for coupling a first optical fiber with the mode expander isolator, the optical fiber output for coupling a second optical fiber with the mode expander isolator, the isolator being positioned between the optical fiber input and the optical fiber output for preventing back-reflected laser light from reaching the optical fiber input and wherein the isolator and the at least one lens form a free space mode expander.

Abstract: An optical isolator for optically isolating an optical system, the optical system outputting electromagnetic radiation at predetermined ranges of frequencies, the optical isolator including a filter, and a Raman shifter, the filter is optically coupled with the output of the optical system and allows electromagnetic radiation of at least the predetermined ranges of frequencies to pass therethrough, the Raman shifter is optically coupled with the output of the filter for shifting the frequencies of the electromagnetic radiation through Raman scattering, the filter filtering back reflected portions of the shifted frequencies electromagnetic radiation.

Abstract: An optical isolator for optically isolating an optical system, the optical system outputting electromagnetic radiation at predetermined ranges of frequencies, the optical isolator including a filter, and a Raman shifter, the filter is optically coupled with the output of the optical system and allows electromagnetic radiation of at least the predetermined ranges of frequencies to pass therethrough, the Raman shifter is optically coupled with the output of the filter for shifting the frequencies of the electromagnetic radiation through Raman scattering, the filter filtering back reflected portions of the shifted frequencies electromagnetic radiation.

Abstract: A fiber-optic coupler packaging including an internal encapsulation for encapsulating a fiber-optic coupler, the refraction index of the internal encapsulation is smaller than the refraction index of the fiber-optic coupler, and an external encapsulation, for encapsulating the internal encapsulation, the refraction index of the external encapsulation is greater than the refraction index of the internal encapsulation, the internal encapsulation and the external encapsulation are substantially transparent to the range of wavelengths of the light traveling inside the fiber-optic coupler.

Abstract: Pulsed fiber laser including an electronic driver, a laser diode and a laser cavity, the laser cavity including a combiner, a doped optical fiber and a coupler, the laser diode being coupled with the electronic driver, the combiner being coupled with the laser diode, the doped optical fiber being coupled with the combiner, and the coupler being coupled with the doped optical fiber and the combiner, the electronic driver for providing a drive current, the laser diode for generating a pump pulse, the doped optical fiber for absorbing the pump pulse and for generating a circulating laser pulse, the coupler for outputting a first portion of the circulating laser pulse and for returning a second portion of the circulating laser pulse to the combiner, wherein the electronic driver operating the laser diode at a specific pump pulse repetition rate (PRR), a specific pump pulse shape and a specific pump pulse width and wherein the combiner providing the pump pulse and the second portion of the circulating laser pulse

Abstract: A fiber-optic coupler packaging including an internal encapsulation for encapsulating a fiber-optic coupler, the refraction index of the internal encapsulation is smaller than the refraction index of the fiber-optic coupler, and an external encapsulation, for encapsulating the internal encapsulation, the refraction index of the external encapsulation is greater than the refraction index of the internal encapsulation, the internal encapsulation and the external encapsulation are substantially transparent to the range of wavelengths of the light traveling inside the fiber-optic coupler.

Abstract: A system for producing a tapered fiber optic component, the system including a support platform, coupled with a first end of an optical fiber, a weight suspended from a second end of the optical fiber, such that the weight applies longitudinal pulling pressure on the optical fiber, and a moveable heater, positioned adjacent to a predetermined area of the optical fiber, the predetermined area is positioned between the first end and the second end of the optical fiber, the moveable heater applying thermal energy to the predetermined area of the optical fiber, when the optical fiber is lengthened by the pulling pressure, the movable heater follows the predetermined area, such that the movable heater remains adjacent to the predetermined area of the optical fiber.

Abstract: Emitter controller including a controller, and a power amplifier, the controller being connected to a power source, the power amplifier being connected to the controller, the power source and to an emitter, the controller providing a pulse sequence to the power amplifier for operating the emitter, the controller determining the pulse sequence according to an available power voltage level.