Results 311 to 320 of about 50,884 (339)

Few-mode fiber technology for mode division multiplexing

Optical Fiber Technology, 2017
Abstract We review recent progress on few-mode fiber (FMF) technologies for mode-division multiplexing (MDM) transmission. First, we introduce fibers for use without and with multiple-input multiple-output (MIMO) digital signal processing (DSP) to compensate for modal crosstalk, and briefly report recent work on FMF for use without/with a MIMO DSP ...
Takashi Yamamoto, Takayoshi Mori, Taiji Sakamoto, Masaki Wada, Kazuhide Nakajima   +4 more
openaire   +2 more sources

Low loss mode multiplexer de-multiplexer for mode division multiplexing over two mode fiber

2015 Workshop on Recent Advances in Photonics (WRAP), 2015
Mode Division Multiplexing (MDM) over Few Mode Fiber (FMF) enhances the capacity of an optical fiber system by providing additional degrees of freedom in the form of modes which are selectively excited at the transmitter and selectively detected at the receiver. The key to capitalize on such a system is implementation of low loss mode multiplexer (mux)
E. S. Shivaleela, Ashish Awasthi, Talabattula Srinivas   +2 more
openaire   +2 more sources

Equalizer complexity of mode-division multiplexed coherent receivers

2012 14th International Conference on Transparent Optical Networks (ICTON), 2012
We show that OFDM requires the lowest equalizer complexity for crosstalk compensation in a mode-division-multiplexing receiver. For a 2000-km transmission distance and less than 10% ODFM-specific overhead, the modal dispersion must be below 12 ps ...
Sander L. Jansen, Bernhard Spinnler, Beril Inan, Filipe Ferreira, Susmita Adhikari, Adriana Lobato, Norbert Hanik, Dirk van den Borne, Vincent A. J. M. Sleiffer   +8 more
openaire   +4 more sources

Switching and Multiplexing Technologies for Mode-Division Multiplexed Networks

Optical Fiber Communication Conference, 2017
• Mode-multiplexing over multimode fibers has the potential to scale WDM networks by a factor of 10 or more • Multimode components like wavelength selective switches and optical amplifiers can scale to large number of modes • Wavelength selective switches, which are the basic building block for WDM network can be extended to support multimode fibers ...
openaire   +2 more sources

Few-mode fibers for mode division multiplexing transmission

SPIE Proceedings, 2012
A study is presented of the fiber properties needed to achieve 10-mode multiplexing transmission. A combination of MIMO processing with optical LP mode separation is proposed to prevent the need for massive MIMO computation. The impact of mode crosstalk, differential mode delay, and the mode dependent loss of the few-mode fibers on mode multiplexing
Hirokazu Kubota, Toshio Morioka
openaire   +2 more sources

Few-mode optical fiber for mode-division multiplexing

Optical Fiber Technology, 2011
Abstract This paper describes the group delay difference and mode coupling of few-mode fiber for “uncoupled” mode division multiplexing. Optical mode separation is compatible with few-mode fiber. It has complementary characteristics with the MIMO technique.
Toshio Morioka, Hirokazu Kubota
openaire   +2 more sources

Few-Mode TDFA for Mode Division Multiplexing at 2µm

2014 IEEE Photonics Society Summer Topical Meeting Series, 2014
We report the first demonstration of an inline two-mode group thulium-doped fiber amplifier (TMG-TDFA) operating at 2µm for mode-division multiplexed transmission. Similar gain and noise figure performance are obtained for both spatial modes under cladding-pumped operation.
Jae M. O. Daniel, David J. Richardson, Alexander M. Heidt, Brian Corbett, Mohammad Belal, Peter C. Shardlow, James O'Callaghan, W.A. Clarkson, Jayanta K. Sahu, Z. Li, Deepak Jain, Yongmin Jung, Shaif-ul Alam   +12 more
openaire   +2 more sources

Mode coupling effects in mode-division-multiplexed systems

2012 IEEE Photonics Society Summer Topical Meeting Series, 2012
Mode coupling is a key to overcoming major challenges in mode-division-multiplexed (MDM) long-haul systems using coherent detection. Strong mode coupling reduces the modal group delay spread, minimizing the complexity of digital multi-input multi-output (MIMO) signal processing.
Keang-Po Ho, Joseph M. Kahn
openaire   +2 more sources

Wavelength Division Multiplexing-Mode Division Multiplexing for MMF in Access Networks

Advanced Science Letters, 2017
Hussein Mohammed Esmail Abualrejal, Angela Amphawan, Yousef Fazea   +2 more
openaire   +2 more sources

Hematology and oncology clinical care during the coronavirus disease 2019 pandemic

Ca-A Cancer Journal for Clinicians, 2020
Manish A Shah, Tsiporah B Shore, Sebastian Mayer   +2 more
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