Broadband Mode Converter Based on Photonic Crystal Fiber

Cai, Shanyong; Yu, Song; Lan, Mingying; Gao, Li; Nie, Song; Gu, Wanyi

doi:10.1109/lpt.2014.2377495

Cited by 23 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sun et al have theoretically investigated the general principles of the PCF mode converter based on air-hole collapse [25]. Cai et al proposed the tapered PCF and hybrid dual-core PCF mode converter to realize broadband and low-loss devices [26,27]. However, these mode converters still show relatively narrow bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Sun

2018

Crystals

View full text Add to dashboard Cite

Abstract:We propose a tunable magnetic fluid-filled hybrid photonic crystal fiber mode converter. Innovative design principles based on the hybrid connected dual-core photonic crystal fiber and magnetically modulated optical properties of magnetic fluid are developed and numerically verified. The mode converter was designed to convert LP 11 in the index-guiding core to the LP 01 mode in the photonic bandgap-guiding core. By introducing the magnetic fluid into the air-hole located at the center of the photonic bandgap-guiding core, the mode converter can realize a high coupling efficiency and an ultra-wide bandwidth. The coupling efficiency can reach up to 99.9%. At a fixed fiber length, by adjusting the strength of the magnetic field, the coupling efficiency can reach up to 90% and 95% at wavelengths in the ranges of 1.33 µm-1.85 µm and 1.38 µm-1.75 µm, with bandwidth values reaching 0.52 µm and 0.37 µm, respectively. Moreover, it has a good manufacturing flexibility. The mode converter can be used to implement wideband mode-division multiplexing of few-mode optical fiber for high-capacity telecommunications.

show abstract

Section: Introductionmentioning

confidence: 99%

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Sun

2018

Crystals

View full text Add to dashboard Cite

show abstract

“…In a typical MDM system, high-order modes are converted from a single-mode laser source, then externally modulated and multiplexed into a few-mode channel. The laser sources, modulators, mode converters, and multiplexers are usually discrete devices, resulting in a complex and bulky transmitter system [10][11][12]. Much effort has been put into the design and development of integrated MDM devices.…”

Section: Introductionmentioning

confidence: 99%

InP-based directly modulated monolithic integrated few-mode transmitter

Li¹,

Lu²,

He³

et al. 2018

Photon. Res.

View full text Add to dashboard Cite

A monolithic integrated few-mode transmitter comprising of two directly modulated distributed feedback lasers and a multimode-interference-coupler-based mode converter-multiplexer with 66% mode conversion efficiency was designed and demonstrated. A fundamental TE 0 mode and a first-order TE 1 mode were successfully generated from the transmitter, with the output power of 4 and 5.5 mW at a pump current of around 150 mA, respectively, at the common output port. The small signal modulation bandwidth of the TE 0 and TE 1 channels reached 17.4 and 14.7 GHz, respectively. Error-free 2 × 10-Gbit∕s direct modulation of the two-mode transmitter was demonstrated, with a power penalty of 4.3 dB between the TE 0 mode and the TE 1 mode at the bit error rate of 1 × 10 −9 .

show abstract

“…This technique is known as spatial division multiplexing (SDM) and can be implemented in two different schemes. Intuitively, in the multi-core fiber (MCF) scheme, each core acts as an independent channel for sending the information [1], while in the modal division multiplexing (MDM) scheme, each mode is considered an independent transmission channel as in singlemode fiber [3,4]; hence, the key is to convert the fundamental fiber modes to higher order modes. As the processing systems are not prepared to work with hundreds of modes, in the MDM scheme it is preferred to work with few modes fibers (FMFs) [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Intuitively, in the multi-core fiber (MCF) scheme, each core acts as an independent channel for sending the information [1], while in the modal division multiplexing (MDM) scheme, each mode is considered an independent transmission channel as in singlemode fiber [3,4]; hence, the key is to convert the fundamental fiber modes to higher order modes. As the processing systems are not prepared to work with hundreds of modes, in the MDM scheme it is preferred to work with few modes fibers (FMFs) [3,4]. As with any new technology, emerging SDM systems require the development of new components such as optical fibers that support multiple spatial modes and integrated mode converters to control propagating modes, spatial mode multiplexers (SMUXs) and demultiplexers (SDEMUXs).…”

Section: Introductionmentioning

confidence: 99%

“…Mode selective couplers (MSC) based on microstructured optical fiber (MOF) represent one of the best approaches to achieve mode conversion, avoiding the problems of other techniquesbulky free-space optics, polished-and fused-type MSC-since the devices are compact, robust and efficient, and allows the possibility of manipulating its behavior based on the MOF geometrical parameters [3,[21][22][23][24]. The principle of MSC is to phase match the fundamental mode in a single-mode fiber with a high-order mode in FMF.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual-Core Transversally Chirped Microstructured Optical Fiber for Mode-Converter Device and Sensing Application

Reyes-Vera¹,

Restrepo²,

Varón³

et al. 2018

Selected Topics on Optical Fiber Technologies and Applications

View full text Add to dashboard Cite

We propose and demonstrate the concept of transversally chirped microstructured optical fiber and its application for the development of new platforms for sensing and telecommunications devices. First, the feasibility of the structure is demonstrated through two different techniques of manufacture. Based on the proposed structure, a novel modeconverter device is numerically studied. It is found that the mode conversion between LP 01 and LP 11 modes can be continuously tuned by temperature changes from 25 to 75°C. And that, the coupling efficiency in the wavelength range between 1.2 μm and 1.7 μm is always higher than 65%. Consequently, the proposed mode converter can operate in the E + S + C + L + U bands. Finally, a similar structure was used to design a new sensing architecture, which consisting of a dual-core transversally chirped microstructured optical fiber for refractive index sensing of fluids. We show that by introducing a chirp in the hole size, the microstructured optical fiber can be a structure with decoupled cores, forming a Mach-Zehnder interferometer in which the analyte directly modulates the device transmittance by its differential influence on the effective refractive index of each core mode. We show that by filling all fiber holes with analyte, the sensing structure achieves high sensitivity (transmittance changes of 302.8 per RIU at 1.42) and has the potential for use over a wide range of analyte refractive index.

show abstract

Broadband Mode Converter Based on Photonic Crystal Fiber

Cited by 23 publications

References 28 publications

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

InP-based directly modulated monolithic integrated few-mode transmitter

Dual-Core Transversally Chirped Microstructured Optical Fiber for Mode-Converter Device and Sensing Application

Contact Info

Product

Resources

About