1. With the frequency-selecting property of tunable Fabry-Perot Cavity, using LED as light source, the detection sensitivity has been greatly improved by harmonic measurement.

2. Results: The tunable external cavity semiconductor laser based on grating light valve can select at will output or filtrated corresponding wave-packet magnitude.

3. A prototype of electronic tunable filter whose cavity is loaded outside with a variable capacitor module is proposed.

4. The F-P type tunable liquid crystal (LC) optical filter is a kind of compact tunable filter with narrow bandwidth and low tuning voltage.

5. Tunable Laser is an ideal optical source in WDM Optical Networks. It is important components in Optical Packet Switching and it is also used in router of access networks.

6. The real time control of the tunable laser is realized with GPIB bus.

7. The excitation source was a flashlamp pumped Rhodamine tunable dye laser.

8. Micro F-P cavity tunable filter, one of the Micro-opto-electro-mechanical devices, has been widely applied in the area of hyperspectral imaging, DWDM optical communication and self-adaptive optics.

9. The dielectric tunable behaviors of BTS are consistent with Devonshire phenomenological theory.

10. F-P tunable filter demodulation system is choosed by FBG landslide monitoring system.

11. The experiment of wavelength conversion using tunable external - cavity semiconductor laser is performed.

12. Continuously tunable UV radiation is obtained by collinear doubling and non-collinear mixing from visible radiation of pulsed dye laser.

13. Tunable photonic crystals (PC) draw rapidly growing interests in recent years. Practical applications in photonic devices provide a strong motivation to further development of dynamic tenability.

14. It could be used in the tunable oscillator, the tunable filter and the phase shifter in phased-array radar or other related area in the microwave field for its excellent nonlinear dielectric response.

15. We experimentally demonstrate the coherent combining of two tunable erbium-doped fiber lasers by using a single-mode fiber feedback loop configuration.

16. We made the acoustic-optical tunable optical performance monitor (OPM) with the filter of acoustooptic tunable filter (AOTF) successfully by using t.

17. Unfortunately a monochromatic beam is of only limited use for spectroscopy unless it is tunable.

18. The transfer characteristics of basic VMOS differential input stage are analyzed, a VMOS operational transconductance amplifier which has good linearity and tunable transconductance is presented.

19. Laser compared to other lights has the characteristics of higher power, less divergence angle, better monochromaticity, shorter light pulse and continuously tunable spectrum output.

20. A novel portable system for optical fiber attenuation spectrum measurement with accousto-optical tunable filter(AOTF)technique is presented.

21. The tunability was analysed at the specified frequency and a large tunable range of the negative refraction is achieved.

22. Therefore, ZGP has been approved to be an ideal nonlinear laser crystals for generating tunable mid-infrared coherent radiation.

23. A novel method of edge filter demodulation for fiber Bragg grating that use wavelength tunable laser was proposed. Real-time monitoring of the multiple points' dynamic strain could be achieved.

24. Optical signal sources with high repetition rate and the tunable central wavelength play an important role in the high-bit-rate and all-optical communication system.

25. The hard nut we face in the future research about the F-P tunable filter'fabrication is how to improve its structure's steady.

26. This paper researches a continuously tuned filter based on a continuously tunable reactor in order to compensate the detuning and limit excessive harmonic current.

27. Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.

27.

28. We calculated the Second Harmonic Generation(SHG), Third Harmonic Generation(THG), and angle tunable properties of KBBF crystal for the nonlinear optical crystal.

29. The driver operates in the pulse mode, and can generate drive signal whose repeat frequency and pulse interval is tunable.

30. A new multispectral image acquisition system based on liquid crystal tunable filter(LCTF) is proposed.

31. Alexandrite laser is one of the superior tunable solid - lasers.

32. In experiment, we research the optical spectrum and analyze the influence of driven current noise on optical spectrum linewidth of tunable DBR laser.

33. Among the tunable filter technologies of optical fiber grating sensors, the peak method is an usual way, but it has poor precision and the result is unstable.

34. The tunable thulium doped fiber laser has features that: high power, large tuning range, convenient operation and large application range.

35. The rate equation of tunable pulse Ti:sapphire laser is given using the theoretical model of four-level system.

36. Researchers realised that a tunable laser beam might be useful in surgery.

37. An acoustooptic tunable filter (AOTF)-near infrared spectroscopy was established for on-line determination of concentration process of Astragalus mongholicus.

38. As the key apparatus in ASON(automatic switched optical networks), the tunable all optical wavelength conversion device plays a very important role.

39. We found a complete experiment condition during the process of manufacturing the F-P tunable filter. We find an efficient way to deal with datas.

40. It is proved from the theory and experiment that the liquid crystal tunable filter can be used to select some desired wavelength from a multiline laser.

41. This network shows scale-free property when the growing rater is not large, and its power-law exponent is tunable from 2 to 3 thr.

42. Backward wave oscillator(BWO) has been used in many mm-wave sources for its advantage of wide band, frequency tunable continuously, and high power output.

43. A fluorescent spectral system based on Acousto-Optic Tunable Filter (AOTF) technique for measuring pesticide concentration is proposed.

44. A novel portable NIR spectrum instrument based on acoustooptic tunable filter is presented. The instrument can be applied to detect the ingredient concentration of liquid food.

45. Applicability of guided mode resonant structures to tunable optical filtering and sensing is demonstrated using nematic liquid crystals.

46. Wavelength switching together with the switching of the dominating output port of the fiber laser is achieved by controlling the power of a tunable injection laser.

47. It has wide tunable range and can be conveniently and rapidly tuned by changing the acoustic frequency .

48. Conclusion Tunable pulsed overtone Nd : YAG 532 nm laser was efficency to skin vascular lesions.

49. The integrator time constant is tunable by varying a reference bias current.

50. The former is potentially a broadband tunable band rejection filter or temperature sensor with enhanced sensitivity.

51. Compared with conventional tunable acoustic-optic filters the present filter offers more narrow bandwidth and faster tuning speed.

52. An unmodulated stable laser system, which has been used as a tunable CO_2 laser sideband coherent source, is introduced.

53. Group delay and dispersion characters are analyzed according to the above filter. In addition, the dynamic tunable feature is discussed.

54. A tunable GaAlAs diode laser is used as a chirp signal source, the distance is detected by calculating the beat frequency.

55. Since only the phase modulation index or the microwave power is needed to be adjusted, the system is easy to be implemented with tunable comb spacing and adjustable comb number.

56. Optionally, a diversity tunable can be specified allowing for increased resource sharing policy control.

57. In other words,() the output ultra-short pulse train has a tunable duty cycle.

58. A simple standard frequency tunable method which can be used to measure frequency switching time under the rated frequency deviation is presented.

59. It shows that the active channel with sizeable optical gain and a substantial increase of the refractive index are promising for the realization of active waveguide tunable laser.

60. In this work, a new architecture for a ring resonator tunable optical filter is proposed.

61. The development of a broadly tunable excimer laser source by exploiting bound-free transitions of electron beam-pumped diatomic and triatomic are gas halides is described.

62. The spectral resolution is one of the key index for evaluating the performance of the acoustooptic tunable filter.

63. A new design principle of a tunable microwave filter having four coaxial cavities is developed. The skill of making and adjusting this kind filter is represented.

64. The properties of tunable filter based on micro - opto - electric - mechanic system technology driven by electrostatic force are analyzed.

65. The integrated-optic acoustically tunable optical filter (ATOF) has shown considerable potential as a practical optical communication component.

66. The relation between the air gap thickness and the peak wavelength in micro-optical electromechanical system (MOEMS) optical tunable filter based on Fabry-Perot etalon is discussed.

67. Based on the interference principle, a tunable proton exchanged LiNbO3 optical waveguide filter with cascade structure was simulated and designed.

68. Tunable single longitudinal mode operation of semiconductor lasers is obtained using an external dispersive cavity. The linewidth is less than 0. 1A and the tuning range is about 110 A.

69. The rfc1323 tunable enables the TCP window scaling option, which allows TCP to use a larger window size.

70. In this paper, we report a lead salt tunable diode laser fabricated by HUVG.

71. A kind of tunable filter configuration is put forword that can realize wavelength tuning by changing the angle of incidence.

72. Experimental results indicate that this interrogation method is feasible and the strain applied on single grating is linear with the control voltage of tunable optical filter.

73. The transmission properties of the one-dimensional photonic crystals with defects were studied using the eigen matrix method, and a new kind of tunable optical filter is proposed in this paper.

74. Tunable THz Bloch oscillations ( BO ) in the superlattice and THz current oscillations in RTS are investigated.

75. Whispering gallery modes in silica microspheres are excited by a tunable continuous-wave laser through the fiber taper. Ringing phenomenon can be observed with high frequency sweeping speed.

76. The separation of boron isotopes is studied by tunable TEA CO2 superradiance laser.

77. Therefore, it may be used as a tunable laser dye in the red region of the spectrum.

78. A new dynamic model is developed for simulating the widely tunable grating assisted codirectional coupler with rear sampled grating reflector (GCSR) lasers.

79. An optical fiber Fabry-Perot tunable filter is used in the system to demodulate the sensing signal.

80. For tunable microwave device applications, the PST and BST thin films should own high tunability, low dielectric loss, low leakage current and smooth film surface, etc.

81. In the end we use tunable fiber Fabry-Perot filter do realize SSB and carrier suppression in optical communication system in order to illustrate the performance of the filter.

82. The Cavity enhanced absorption spectroscopy based on a tunable DFB diode laser ( TDL - CEAS ) was described.

83. Various crosstalk in acoustooptic tunable filters(AOTFs) for optical cross connection(OXC) systems are provided, and appropriate methods for reducing or removing the crosstalk are discussed.

84. Emphasis is put on the experimental research on its tunable range and the bandwidth narrowing with a diffraction grating and a Fabry-Perot etalon.

85. The novel infrared spectra measuring system using AOTF(Acousto-Optic Tunable Filter) as dispersive element is presented.

86. A near - infrared spectrometer based on an integrated optical acoustooptic tunable filter ( IAOTF ) is constructed.

87. Utilizing phase modulator and dispersion compensation fiber(DCF) link, a non-return-zero(NRZ) data format is converted to return-zero(RZ) data format with tunable duty ratio.

88. The payload supports DAMA and IW operations, and is digitally tunable and completely interoperable with existing terminals.