The demand for high-speed data transmission continues to grow as more bandwidth-intensive services are introduced. To address this need, researchers at NTT Innovative Devices have developed a compact indium phosphide-based coherent driver modulator (CDM) that can achieve an unprecedented baud rate and transmission capacity per wavelength.
Josuke Ozaki from NTT Innovative Devices emphasized the importance of increasing the total data rate of optical transmission systems to support the development of new services and a data-driven society. The new CDM not only increases data capacity but also offers flexible network operation and reduces equipment costs by covering the C+L band in a single module.
The researchers overcame the limitations of previous modulators made from InP, which were known for their strong wavelength dependence. They developed an innovative InP modulator chip with an optimized semiconductor layer and waveguide structure that can operate over a wide wavelength range.
With the new modulator chip, they achieved a breakthrough in data transmission by creating the world’s first CDM with an InP modulator chip capable of transmitting in the C+L band. The compact package body of the CDM measures just 11.9×29.8×4.4 mm, making it highly suitable for miniaturized optical transmitters and receivers.
While the current achievement is remarkable, Ozaki emphasized the need for further advancements in baud rate and transmission speed. The goal is to find new modulator structures and assembly configurations that can achieve higher electro-optic bandwidth with lower power consumption and a smaller form factor.
NTT Innovative Devices is ready to ship alpha samples of the CDM, showcasing their commitment to pushing the boundaries of data transmission speed. The groundbreaking research will be presented at the upcoming Optical Communications and Networking Expo (OFC), where experts from all over the world will have an opportunity to learn more about this technological breakthrough.
FAQ Section:
1. What is the main focus of the research by NTT Innovative Devices?
The main focus of the research by NTT Innovative Devices is to develop a compact indium phosphide-based coherent driver modulator (CDM) that can achieve a high baud rate and transmission capacity per wavelength in order to meet the increasing demand for high-speed data transmission.
2. What are the benefits of the new CDM?
The new CDM not only increases data capacity but also offers flexible network operation and reduces equipment costs by covering the C+L band in a single module.
3. What were the limitations of previous InP modulators?
Previous modulator made from InP had strong wavelength dependence, which limited their effectiveness.
4. How did the researchers overcome the limitations of previous InP modulators?
The researchers developed an innovative InP modulator chip with an optimized semiconductor layer and waveguide structure that can operate over a wide wavelength range.
5. What is the size of the compact package body of the CDM?
The compact package body of the CDM measures just 11.9×29.8×4.4 mm, making it highly suitable for miniaturized optical transmitters and receivers.
6. What are the future goals of the researchers?
The researchers aim to find new modulator structures and assembly configurations that can achieve higher electro-optic bandwidth with lower power consumption and a smaller form factor.
Key Terms/Jargon:
– Coherent driver modulator (CDM): A device used in optical transmission systems to modulate the signals for high-speed data transmission.
– Indium Phosphide (InP): A semiconductor material used in the development of electronic and optoelectronic devices.
– Baud rate: The number of signal changes (bit transitions) that occur per second in a communication system.
– C+L band: A specific wavelength range in optical communication, spanning from the C band (1.53-1.565 μm) to the L band (1.57-1.625 μm).
Suggested related links:
– NTT Official Website
– Optical Communications and Networking Expo (OFC)
The source of the article is from the blog mendozaextremo.com.ar