We present the development of a monolithically integratable optical isolator. The device is a semiconductor optical amplifier with magnetized ferromagnetic metal contact. 12.7dB isolation and optical transparency are demonstrated. The spectral dependence is studied. ©2005 Optical Society of America OCIS codes: (230.3240) Isolators; (250.5980) Semiconductor optical amplifiers; (230.3810) Magneto...

We present first all-fiber unidirectional ring thulium-doped laser, based on isolator-free theta cavity configuration and fiber Bragg mirror as filtering element. Laser provides 1W output power with 30% slope efficiency, and linewidth of about 0.2nm. OCIS codes: (060.3510) Lasers, fiber; (060.2390) Fiber optics, infrared; (160.5690) Rare-earth-doped materials

This paper analyzes and compares the responses of a two-storied steel structure to 1994 Northridge earthquake in California. Response modal nonlinear time-history dynamic analysis was especially used on with fixed-base base-isolated systems show realistic behavior structure. Intuitively, best choice for seismic isolation technique is use flexible element, or an isolator, at structure’s base, wh...

This paper presents a low stiffness nonlinear vibration isolator using pneumatic spring with an auxiliary chamber which is shortened by LSNVI. Firstly, the mechanical model of isolator, constructed two opposite mechanisms includes load bearing mechanism (LBM) and corrected (SCM), introduced. Secondly, restoring force found. Based on this, dynamic calculated numerically. Then, curve was approxim...

BACKGROUND The objective of this randomized, prospective and controlled study was to investigate the ability of a closed-system transfer device (CSTD; BD-Phaseal) to reduce the occupational exposure of two isolators to 10 cytotoxic drugs and compare to standard compounding devices. METHODS AND FINDINGS The 6-month study started with the opening of a new compounding unit. Two isolators were se...

A single blood culture inoculated with a small volume of blood is still frequently being used for the diagnosis of bacteremia in children because of the continued belief by many that bacteria are usually found in high concentrations in the blood of pediatric patients with sepsis. To determine the importance of both blood volume cultured and the number of culture devices required for the reliabl...

Passive optical network topology has been widely adopted in access networks due to its low-cost and yet flexible network structure. To further promote the passive optical networks, the cost reduction of optical modules is critical. Relatively expensive combination of a conventional index-coupled distributed feedback laser diode (IC-DFB-LD) and an optical isolator is commonly used for passive op...

Elastomeric polymer foam has been used widely in the automotive industry, especially for isolating unwanted vibrations. Such material is able to absorb unwanted vibration due to its combination of elastic and viscous properties. However, the ‘creep effect’, poor stress distribution and susceptibility to high temperatures are the main disadvantages of such a system. In this study, improvements i...