Author Affiliations +
Pei-Lin Hsiung,1 Yu Chen,1 N. Nishizawa,1 Tony H. Ko,1 James G. Fujimoto,1 Christiano J. S. de Matos,2 Sergei V. Popov,2 James R. Taylor,2 J. Broeng,3 Valentin P. Gapontsev4
1Massachusetts Institute of Technology (United States)
2Imperial College (United Kingdom)
3Crystal Fiber A/S (Denmark)
4IPG Photonics Corp. (United States)