Abstract
Recently, Kang et al. reported the demonstration of an all-optical Mach-Zehnder demultiplexer (see ibid., vol.31, no.9, pp.749-50, 1995). In their paper, Kang et al. drew what we believe is an invalid comparison with work previously published by ourselves (see S. Nakamura et al., Appl. Phys. Lett., vol.65, no.3, pp.283-5, 1994). They described the device proposed by us, the symmetric Mach-Zehnder (SMZ) all-optical switch, as a Mach-Zehnder version of the terahertz optical asymmetric demultiplexer (TOAD). The SMZ and TOAD are in fact different independently-developed devices, each of which has its advantages and disadvantages. A reply by Kang et al. to this comment is included.
Original language | English |
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Pages (from-to) | 1494-1495 |
Number of pages | 12 |
Journal | Electronics Letters |
Volume | 31 |
Issue number | 17 |
DOIs | |
Publication status | Published - 17 Aug 1995 |
Keywords
- all-optical Mach-Zehnder demultiplexer
- symmetric Mach-Zehnder all-optical switch
- terahertz optical asymmetric demultiplexer