Papers

  1. R. D. Niederriter, J. T. Gopinath and M. E. Siemens, "Measurement of the M2 beam propagation factor using a focus-tunable liquid lens," Applied Optics 52, 1591-1598 (2013).
  2. J. T. Gopinath, V. M. Bright, C. C. Cogswell, R. D. Niederriter, A. Watson, R. Zahreddine, and R. H. Cormack, "Simulation of electrowetting lens and prism arrays for wavefront compensation," Applied Optics 51, 6618-6623 (2012).
  3. P. W. Juodawlkis, J. J. Plant, W. Loh, L. Missaggia, F. O'Donnell, D. C. Oakley, A. Napoleone,, J. Klamkin, J. T. Gopinath, D. J. Ripin, S. Gee, P. J. Delfyett, and J. P. Donnelly, "High-Power, Low-Noise 1.5-?m Slab-Coupled Optical Waveguide (SCOW) Emitters: Physics, Devices, and Applications," IEEE J. of Sel. Top. in Quant. Electron. 17, 1698-1714 (2011).
  4. K-H Hong, J. T. Gopinath, D. Rand, A. M. Siddiqui, S-W Huang, E Li, B. J. Eggleton, J. D. Hybl, T. Y. Fan, and F. X. Kaertner, "High-energy, kHz-repetition-rate, ps cryogenic Yb:YAG chirped-pulse amplifier," Optics Letters 35, 1752-1754 (2010).
  5. K.-H. Hong, A. Siddiqui, J. Moses, J. T. Gopinath, J. Hybl, F. O. Ilday, T. Y. Fan, and F. X. Kaertner, "Generation of 287-W, 5.5-ps pulses at 78-MHz repetition rate from a cryogenically cooled Yb:YAG amplifier seeded by a fiber chirped-pulse amplification system," Optics Letters 33, 2473-2475 (2008).
  6. J. T. Gopinath, B. Chann, T.Y. Fan, and Antonio Sanchez, "1450-nm high-brightness wavelength-beam combined diode arrays and stacks," Optics Express 16, 9405-9410 (2008).
  7. J. T. Gopinath, B. Chann, R. K. Huang, C. Harris, J. J. Plant, L. Missaggia, J. P. Donnelly, P. W. Juodawlkis, and D. J. Ripin, "980-nm monolithic passively modelocked diode lasers with 62 pJ of pulse energy," IEEE Photonics Technology Letters 19, 937-939 (2006).
  8. J. J. Plant, J. T. Gopinath, B. Chann, D. J. Ripin, R. K. Huang, and P. W. Juodawlkis, "250 mW, 1.5 micron monolithic passively mode-locked slab-coupled optical waveguide laser," Optics Letters 31, 223-225 (2006).
  9. J. T. Gopinath, H. M. Shen, H. Sotobayashi, E. P. Ippen, T. Hasegawa, T. Nagashima, and N. Sugimoto, "Highly nonlinear bismuth-oxide fiber for supercontinuum generation and femtosecond pulse compression," Journal of Lightwave Technology 23, 3591 - 3596 (2005).
  10. F. J. Grawert, S. Akiyama, J. T. Gopinath, F. O. Ilday, H. M. Shen, J. Liu, K. Wada, L. C. Kimerling, E. P. Ippen, and F. X. Kaertner, "220 fs Er-Yb:glass laser mode-locked by a broadband low-loss Si/Ge saturable absorber," Optics Letters 30, 329-331 (2005).
  11. P. T. Rakich, H. Sotobayashi, J. T. Gopinath, S. G. Johnson, J. W. Sickler, C. W. Wong, J. D. Joannopoulos, and E. P. Ippen, "Nano-scale photonic crystal microcavity characterization with an all-fiber-based 1.2 - 2.0 micron supercontinuum," Optics Express 13, 821-825 (2005).
  12. F. J. Grawert, F. O. Ilday, D. Kielpinski, J. T. Gopinath, L. A. Kolodziejski, G. S. Petrich, E. P. Ippen, and F. X. Kaertner, "Q-switch suppression in an Er-doped waveguide laser with an intracavity loss modulator," Optics Letters 30, 1066-1068 (2005).
  13. J. T. Gopinath, M. Soljacic, E. P. Ippen, V. N. Fuflyigin, W. A. King, and M. Shurgalin, "Third-order nonlinearities in Ge-As-Se-based glasses for telecommunications applications". Journal of Applied Physics 96, 6931-6933 (2004). Also appeared as an Invited Paper in Virtual Journal of Ultrafast Science December 2004.
  14. J. T. Gopinath, H. M. Shen, H. Sotobayashi, E. P. Ippen, T. Hasegawa, T. Nagashima, and N. Sugimoto, "Highly nonlinear bismuth-oxide fiber for smooth supercontinuum generation at 1.5 micron," Optics Express 12, 5697-5702 (2004).
  15. S. N. Tandon, J. T. Gopinath, A. A. Erchak, G. S. Petrich, L. A. Kolodziejski, and E. P. Ippen. "Large area oxidation of AlAs layers for dielectric stacks and thick buried oxides," Journal of Electronic Materials 33, 774-779 (2004).
  16. H. Sotobayashi, J. T. Gopinath, E. M. Koontz, L. A. Kolodziejski, and E. P. Ippen, "Wavelength tunable, passively mode-locked Bismuth Oxide-based Erbium-doped fiber laser," Optics Communications 237 no. 4-6, 399-403 (2004).
  17. R. P. Prasankumar, I. Hartl, J. T. Gopinath, E. P. Ippen, J. G. Fujimoto, P. Mak and M. F. Ruane, "Design and characterization of semiconductor-doped silica film saturable absorbers," Journal of the Optical Society of America B (Optical Physics) 21, 851-857 (2004).
  18. H. Sotobayashi, J. T. Gopinath, Y. Takushima, K. Hsu, and E. P. Ippen, "Broadband wavelength tunable, single frequency, and single polarization Bismuth Oxide-based Erbium-doped fiber laser." IEEE Photonics Technology Letters 16, 1628-1630 (2004).
  19. S. N. Tandon, J. T. Gopinath, H. M. Shen, G. S. Petrich, L. A. Kolodziejski, F. X. Kaertner, and E. P. Ippen, "Large area broadband saturable bragg reflectors using oxidized AlAs." Optics Letters 29, 2551-2553 (2004).
  20. J. T. Gopinath, H. Sotobayashi, and E. P. Ippen, "Broadband amplification of picosecond pulses in a 23 cm length of Bi2O3-based Erbium-doped fiber," OSA TOPS 92 (Optical Amplifiers and Their Applications), 50-53 (2003).
  21. T. R. Schibli, J. Kim, O. Kuzucu, J. T. Gopinath, S. N. Tandon, G. S. Petrich, L. A. Kolodziejski,J. G. Fujimoto, E. P. Ippen, and F. X. Kaertner, "Attosecond active synchronization of passively mode-locked lasers using balanced cross-correlation," Optics Letters 28, 947-949 (2003).
  22. H. Sotobayashi, J. T. Gopinath, and E. P. Ippen,"23 cm long Bi2O3-based EDFA for picosecond pulse amplification with 80 nm gain bandwidth," Electronics Letters 39, 1374-1375 (2003).
  23. D. J. Ripin, J. T. Gopinath, H. M. Shen, G. S. Petrich, L. A. Kolodziejski, F. X. Kaertner, and E. P. Ippen, "Oxidized GaAs/AlAs mirror with a quantum-well saturable absorber for ultrashort-pulse Cr4+:YAG laser." Optics Communications 214, 285-289 (2002).
  24. K. S. Abedin, J. T. Gopinath, L. A. Jiang, M. E. Grein, H. A. Haus, and E. P. Ippen, "Selfstabilized passive, harmonically mode-locked stretched pulse Erbium fiber ring laser." Optics Letters 27, 1758-1760 (2002).
  25. K. S. Abedin, J. T. Gopinath, E. P. Ippen, C.E. Kerbage, R. S. Windeler, and B. J. Eggleton, "Highly nondegenerate femtosecond four-wave mixing in tapered microstructure fiber." Applied Physics Letters 81, 1384-1387 (2002).
  26. D. J. Ripin, C. Chudoba, J. T. Gopinath, J. G. Fujimoto, E. P. Ippen, U. Morgner, F. X. Kartner, V. Scheuer, G. Angelow, and T. Tschudi, "Generation of 20-fs pulses by a prismless Cr4+:YAG laser." Optics Letters 27, 61-63 (2002).
  27. J. T. Gopinath, E. R. Thoen, E. M. Koontz, M. E. Grein, L. A. Kolodziejski, E. P. Ippen, and J. P. Donnelly, "Recovery dynamics in proton-bombarded semiconductor saturable absorber mirrors." Applied Physics Letters 78, 3409-3411 (2001).

Presentations

  1. K.-H. Hong, J. Gopinath, D. Rand, A. Siddiqui, S.-W. Huang, E. Li, B. Eggleton, J. Hybl, T. Y. Fan, and F. X. Kaertner, "High-Energy, Picosecond, Cryogenic Yb:YAG Chirped-Pulse Amplifier at kHz Repetition Rates for OPCPA Pumping," Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2010), JThD2.
  2. J. T. Gopinath, K. F. Wall, J. Hybl, P. F. Moulton, and T.Y. Fan, "High-Power,Actively Modelocked Cryogenic Yb:YAG Laser," Presented at Advanced Solid-State Photonics(ASSP) (Feb. 2010), AWB22.
  3. K. H. Hong, J. T, Gopinath, D. Rand, A. Siddiqui, J. Moses, J.-C. Lai, J. Hybl, T. Y. Fan, and F. X. Kaertner "Generation of 2-kHz, 40-mJ picosecond pulses from a cryogenic Yb:YAG chirped-pulse amplifier for OPCPA pumping," Presented at Advanced Solid-State Photonics (Feb 2010), Postdeadline paper.
  4. K-H. Hong, J. Gopinath, A. Siddiqui, J. Moses, C-J Lai, J. Hybl, and T. Y. Fan, "High average-power cryogenically cooled picosecond Yb:YAG amplifier seeded by a fiber CPA system". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2009).
  5. T. Y. Fan, D. J. Ripin, J. D. Hybl, J. T. Gopinath, A. K. Goyal, D. A. Rand, S. J. Augst, and J. R. Ochoa, "Cryogenically cooled solid-state lasers: recent developments and future prospects," Presesnted at 2009 Conference on Lasers & Electro-Optics Europe & 11th European Quantum Electronics Conference (CLEO/EQEC) (Feb. 2009), p. 1.
  6. J. T. Gopinath, J. Hybl, D. Ripin, J. Ochoa, T. Y. Fan, K. Hong, A. Siddiqui, J. Moses, and F. X. Kaertner, "Cryogenically cooled Yb:YAG amplifier with 287-W output power in 5.5-ps pulses". Presented at Directed Energy Professional Society Ultrashort Pulse Laser Workshop (DEPS) (Sept. 2008).
  7. J. D. Hybl, J. T. Gopinath, R. L. Aggarwal, S. J. Augst, B. Chann, P. Foti, J. R. Ochoa, D. Rand, D. J. Ripin, and T.Y. Fan, "Ultrashort-pulse cryogenic Yb lasers". Presented at Directed Energy Professional Society Meeting (DEPS) (Oct. 2007).
  8. J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, "High brightness wavelength beam-combined eyesafe diode laser stacks". Presented at 2007 Conference on Lasers and Electro-Optics (CLEO) (Nov. 2006).
  9. J. T. Gopinath, J. J. Plant, B. Chann, R. K. Huang, C. Harris, L. Missaggia, J. P. Donnelly, P. W. Juodawlkis, and D. J. Ripin, "High power monolithic passively mode-locked slab-coupled optical waveguide lasers". Invited talk presented at the 2006 Conference on Lasers and Electro-Optics (CLEO) (May 2006).
  10. J. T. Gopinath, H. M. Shen, H. Sotobayashi, and E. P. Ippen, "Novel highly nonlinear bismuth oxide fiber for supercontinuum generation". Presented at the Lasers and Electro-Optics(LEOS) Annual Meeting, (July 2004).
  11. J. T. Gopinath, M. Soljacic, E. P. Ippen, V. N. Fuflyigin, W. A. King, and M. Shurgalin, "Third-order nonlinearities in Ge33As12Se55 glass for high-index contrast fiber devices". Presented at the 2004 Conference on Lasers and Electro-Optics (CLEO) (June 2004).
  12. J. T. Gopinath, H. Sotobayshi, and E. P. Ippen, "Picosecond pulse amplfication over a bandwidth of 80 nm in a 23 cm length of Bi2O3-based Erbium-doped fiber". Presented at the OSA Optical Amplifiers (OAA) Meeting (July 2003), pp. 130-132.
  13. J. T. Gopinath, E. R. Thoen, E. M. Koontz, M. E. Grein, L. A. Kolodziejski, E. P. Ippen, and J. P. Donnelly, "Ultrafast recovery times in implanted semiconductor saturable absorber mirrors at 1.5 micron". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2001), appears in Errata Section of Postconference Edition, pp. CWI4-1 to CWI4-3.
  14. F. J. Grawert, S. Akiyama, J. T. Gopinath, F. O. Ilday, J. Liu, H. Shen, K. Wada, L. C. Kimerling, E. P. Ippen, and F. X. Kaertner, "Silicon-germanium saturable absorber mirrors". Presented at the Lasers and Electro-Optics (LEOS) Annual Meeting (July 2004).
  15. P. T. Rakich, J. T. Gopinath, H. Sotobayashi, C. W. Wong, S. G. Johnson, J. D. Joannopoulos, and E. P. Ippen, "Broadband supercontinuum based measurements of high-index contrast photonic bandgap devices from 1 to 2 micron". Presented at the Lasers and Electro-Optics(LEOS) Annual Meeting (July 2004).
  16. S. N. Tandon, J. T. Gopinath, H. M. Shen, G. S. Petrich, L. A. Kolodziejski, F. X. Kaertner, and E. P. Ippen, "Broadband saturable Bragg reflectors from the infrared to visible using oxidized AlAs". Presented at the 2004 Conference on Lasers and Electro-Optics (CLEO) (June 2004).
  17. J. W. Sickler, J. T. Gopinath, S. N. Tandon, H. Sotobayashi, G. S. Petrich, L. A. Kolodziejski, and E. P. Ippen, "Femtosecond laser using broadband erbium-doped bismuth oxide gain fiber". Presented at the 2004 Conference on Lasers and Electro-Optics (CLEO) (June 2004).
  18. H. Sotobayashi, J. T. Gopinath, J. W. Sickler, and E. P. Ippen, "Broadband fiber lasers using bismuth oxide-based erbium-doped fiber amplifiers (invited)". Presented at SPIE International Symposium on InformationTechnology and Communications (ITCom) (October 2004).
  19. H. Sotobayashi, J. T. Gopinath, J. W. Sickler, and E. P. Ippen, "Novel fiber laser technologies using broadband bismuth oxide-based erbium-doped fiber amplifiers (invited)". Presented at the 9th European Conference on Networks & Optical Communications (ECOC) (June 2004).
  20. H. Sotobayashi, J. T. Gopinath, and E. P. Ippen, "Broadband bismuth oxide-based erbiumdoped fiber lasers (invited)". Presented at SPIE Photonics Europe 2004, (April 2004).
  21. H. Sotobayashi, J. T. Gopinath, Y. Takushima, E. P. Ippen, and K. Hsu, "90 nm wavelength tunable single frequency Bi2O3-based Erbium-doped fiber laser". Presented at the Lasers and Electro-Optics(LEOS) Annual Meeting (October 2003), pp. 796-797.
  22. H. Sotobayshi, J. T. Gopinath, E. M. Kootnz, L. A. Kolodziejski, and E. P. Ippen, "Passively modelocked Bi2O3-based Erbium-doped fiber laser with a 30 nm wavelength tunability in the L band". Presented at the European Conference on Optical Communications (September 2003).
  23. K. S. Abedin, J. T. Gopinath, E. P. Ippen, C. E. Kerbage, R. S. Windeler, and B. J. Eggleton, "Efficient highly nondegenerate four-wave mixing with tapered microstructure fiber". Presented at Nonlinear Optics OSA Topical Meeting (NLO) (August 2002).
  24. K. S. Abedin, J. T. Gopinath, L. A. Jiang, M. E. Grein, H. A. Haus, and E. P. Ippen, "Selforganization of harmonic pulses in a passively modelocked stretched pulse Erbium fiber ring laser". Presented at 2002 IEEE Lasers and Electro-Optics Annual Meeting (LEOS) (November 2002).
  25. S. N. Tandon, J. T. Gopinath, T. R. Schibli, G. S. Petrich, L. A. Kolodziejski, F. X. Kaertner, and E. P. Ippen, "Saturable absorbers with large area broadband Bragg reflectors for femtosecond pulse generation". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2003), CWM5.
  26. T. R. Schibli, J. Kim, L. Matos, A. W. Killi, J. T. Gopinath, S. Tandon, G. Petrich, J. G. Fujimoto, E. P. Ippen, F. X. Kaertner, and L. A. Kolodziejski, "300 attosecond active synchronization of passively modelocked lasers using balanced cross-correlation". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2003), JTuC4.
  27. T. R. Schibli, J. Kim, O. Kuzucu, J. T. Gopinath, S. N. Tandon, G. S. Petrich, L. A. Koldziejski, J. G. Fujimoto, E. P. Ippen, and F. X. Kaertner, "Attosecond active synchronization of passively modelocked lasers using balanced cross-correlation". Presented at Advanced Solid- State Photonics 2003 (ASSL) (Feb. 2003), Postdeadline paper.
  28. D. J. Ripin, J. T. Gopinath, H. M. Shen, F. X. Kaertner, E. P. Ippen, A. A. Erchak, G. S. Petrich, L. A. Kolodziejski,and U. Morgner, "A few-cycle Cr4+:YAG laser". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2002).
  29. A. A. Erchak, D. J. Ripin, J. T. Gopinath, H. M. Shen, F. X. Kaertner, G. S. Petrich, L. A. Kolodziejski, and E. P. Ippen, "Large scale oxidation of AlAs layers for broadband saturable Bragg reflectors". Presented at Conference on Lasers and Electro-Optics (CLEO) (June 2002).
  30. R. P. Prasankumar, I. Hartl, J. T. Gopinath, E. P. Ippen, J. G. Fujimoto, P. Mak and M. F. Ruane, "Ultrafast dynamics of non-epitaxially grown semiconductor-doped silica film saturable absorbers". Presented at Quantum Electronics and Laser Science Conference (QELS) (June 2001).